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250th USMC Birthday Shirt

$17.75 USD
$17.75 USD
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𝐕𝐞𝐭𝐞𝐫𝐚𝐧 𝐃𝐫𝐚𝐰𝐧-𝐕𝐞𝐭𝐞𝐫𝐚𝐧 𝐏𝐫𝐢𝐧𝐭𝐞𝐝-𝐕𝐞𝐭𝐞𝐫𝐚𝐧 𝐎𝐰𝐧𝐞𝐝

𝐁𝐞𝐬𝐭 𝐒𝐞𝐥𝐥𝐢𝐧𝐠 𝐒𝐡𝐢𝐫𝐭𝐬

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𝐀𝐥𝐥 𝐒𝐡𝐢𝐫𝐭𝐬

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DEEP SEA COLLECTION

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STAR BATTLES COLLECTION

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Toon Town COLLECTION

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Rick And Morty

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Long Live The Infantry

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Hammer

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Fallout

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Old Designs

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HALO COLLECTION

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DEEP SEA COLLECTION

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STAR BATTLES COLLECTION

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Toon Town COLLECTION

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Rick And Morty

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Long Live The Infantry

Shop Now

Hammer

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Fallout

Shop Now

Old Designs

Shop Now

HALO COLLECTION

SHOP NOW

DEEP SEA COLLECTION

Shop Now

STAR BATTLES COLLECTION

Shop Now

Toon Town COLLECTION

Shop Now

Rick And Morty

Shop Now

Long Live The Infantry

Shop Now

Hammer

Shop Now

Fallout

Shop Now

Old Designs

Shop Now

HALO COLLECTION

SHOP NOW

DEEP SEA COLLECTION

Shop Now

STAR BATTLES COLLECTION

Shop Now

Toon Town COLLECTION

Shop Now

Rick And Morty

Shop Now

Long Live The Infantry

Shop Now

Hammer

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Fallout

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Old Designs

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From the First Line to the Final Print — no shortcuts, no compromises.”

Sketch
Final Design
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Final Design
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Final Design

-NO NONSENSE GURANTEE-

The No-Nonsense Guarantee is simple: you get exactly what we promise — no gimmicks, no fine print.

If something’s off — wrong size, damaged, or just not what you expected — we’ll make it right with a fast exchange, refund, or replacement.

No endless emails. No hoops to jump through. Just real people standing behind their word and taking care of you the way it should be done.

LEARN MORE

Information Center

Shipping Speed

We Pride Ourselves On A Fast Turnaround Time.

Orders are Expected to Ship Within 72-96 Hours After Purchase.

  • Orders on average are packaged to ship 2-3 business days after order received. Your shipping estimated time of arrival does not begin until it’s been handed off to the courier (USPS, UPS, DHL).
  • Monthly Drops will extended production times by 2-3 business due to the sheer volume of orders we experience.

Shipping Policy

SHIPPING

𝑾𝒆 𝒔𝒉𝒊𝒑 𝒂𝒍𝒍 𝒂𝒓𝒐𝒖𝒏𝒅 𝒕𝒉𝒆 𝒘𝒐𝒓𝒍𝒅 !

A.Shipping: Phaseline.Co will ship your order to the shipping address provided during the ordering process. We strive to process and ship orders promptly, but delivery times may vary based on the shipping method and destination.

B. International Shipping: Phaseline.Co offers international shipping; however, additional customs fees, duties, or taxes may apply. These charges are the responsibility of the customer and are not included in the order total or shipping costs.

  • Typical shipping is 3 to 5 days for US orders and 7 to 21 days for international orders/APO.
  • We are not responsible for carrier delays with packages. Once it leaves our hands, it is in the carrier's full possession, and we have no control over it.
  • Any questions or concerns regarding shipped packages should be addressed with the carrier, using your tracking number.
  • For more information on shipping timeframes, visit the carrier's website.
  • For packages that may end up lost or in transit for too long, please contact the postal carrier before reaching out to us. Fill out a lost package form with them.

Note: All our products are made-to-order. We don't have bulk stock lying around collecting dust. Everything is Printed, Engraved or Embroidered just for you so please allow 2-3 Business Days for Apparel Items and up to 7 Business Days for Laser Engraved Items.

When we print your shipping label, you will receive a shipping confirmation email that contains a tracking number.  You should receive your order within 2-4 business days once you receive shipping confirmation.

For Any Questions/Comments/Concerns Feel Free To Email: cs@americansunitedinc.com

Sizing Guide


- Let’s Talk Sizing -

We get it — sizing can be a pain with most apparel brands.
That’s why we went beyond the generic sizing chart to create a real guide that solves fit problems before they happen.

We tested our products on different body types, different style preferences, and real-world wear to make sure you can find the perfect fit, no guesswork and no wasted shirts.

If you Still would Like The Generic Sizing Chart They Are Located At The Bottom Of the guide.

This guide will walk you through everything you need to know, step-by-step.

THE ULTIMATE SIZING / FIT GUIDE

TABLE OF CONTENTS

  1. Quick Size/Fit Guide – Sizing for all wearable products.

  2. Solutions for Common Fit Challenges – Tailored tips for every body type.

  3. Choosing the Right Fit for Your Style – How to size for different looks.

  4. Caring for Your Gear – Keep your fit and your clothes looking new.

1. QUICK SIZE / FIT GUIDE

A straightforward reference to help you quickly match your size based on chest measurement.

Next Level 6210 – Premium Tees

(Unisex crew neck, short sleeve)

Size Chest (inches)
S 34–37"
M 38–41"
L 42–45"
XL 46–49"
2XL 50–53"

Fit Notes:

  • Slightly tapered athletic cut through the chest and arms.

  • True-to-size for a slim/athletic fit.

  • Size up for extra length or a relaxed fit.

IND4000 – Hoodies

(Unisex pullover hoodie with kangaroo pocket)

Size Chest (inches)
S 34–36"
M 38–40"
L 42–44"
XL 46–48"
2XL 50–52"

Fit Notes:

  • Standard unisex fit — not overly slim, not overly baggy.

  • Size up for a roomy, streetwear fit or for layering.

  • Great balance of comfort and shape retention.

Comfort Colors – Vintage Tees

(Unisex pigment-dyed tee with a worn-in feel)

Size Chest (inches)
S 34–36"
M 38–40"
L 42–44"
XL 46–48"
2XL 50–52"

Fit Notes:

  • Relaxed fit with extra room in the torso.

  • Runs slightly large — most people stay true to size or size down for a fitted look.

  • Ideal for a vintage, laid-back style.

2. SOLUTIONS FOR COMMON FIT CHALLENGES

Everyone’s body is different — here’s how to dial in your fit no matter your shape or proportions. We have gotten this question a lot- I had no experience in how to answer it- so we worked with multiple individuals to get this perfect. Really simple fixes.

Long Torso

  • Problem: Shirts ride up when you move or feel too short overall.

  • Solution:

    • Size up for extra body length.

    • Comfort Colors are naturally longer, so true size may work.

Short Torso

  • Problem: Shirts feel too long or bunch up at the waist.

  • Solution:

    • Stay true-to-size or size down for a cleaner look.

Broad Shoulders / Muscular Build

  • Problem: Shirts are tight across shoulders and upper arms.

  • Solution:

    • Size up for mobility and comfort.

    • Next Level 6210 tees are tapered, which is perfect for athletic builds.

Slim / Narrow Build

  • Problem: Shirts look boxy or too wide.

  • Solution:

    • Stick with true-to-size for a more fitted look.

    • Avoid sizing up unless going for a streetwear vibe.

Athletic / V-Shape (Broad Shoulders, Narrow Waist)

  • Problem: Fit is perfect in the shoulders but loose at the waist.

  • Solution:

    • Stay true-to-size with Next Level tees.

    • Use layering (hoodies, jackets) to balance proportions.

Taller Than Average

  • Problem: Shirts are too short overall or ride up when lifting arms.

  • Solution:

    • Size up for extra length.

    • Hoodies and Comfort Colors typically have more natural length.

Shorter Than Average

  • Problem: Shirts feel baggy or too long.

  • Solution:

    • Stick with true-to-size or size down.

Between Sizes

  • Problem: Your measurements fall between two size ranges.

  • Solution:

    • For fitted look, go down one size.

    • For relaxed or streetwear fit, go up one size.

    • Hoodies are more forgiving and can usually go either way.

3. PICKING THE RIGHT SIZE FOR YOUR STYLE

Your preferred style matters just as much as your body type.
Here’s how to choose a size for the look you want:

Baggy / Oversized

  • Size one or two sizes up depending on how dramatic you want the look.

  • Works best with hoodies and Comfort Colors tees.

Slim Fit

  • Stay true-to-size for a clean, athletic look.

  • Perfect for Next Level 6210 tees.

Layering

  • Consider sizing up one size to make room for undershirts or base layers.

  • Ideal for colder climates or hoodies worn over tees.

Everyday Fitted Wear

  • True-to-size is best.

  • Balances comfort and style.-Not Too Tight, not too loose.

Looser Abdomen Fit

  • If you carry weight around your midsection, consider sizing up one size.

  • Comfort Colors are naturally forgiving and great for this fit style.

4. CARING FOR YOUR GEAR

Proper care keeps your shirts and hoodies looking new and fitting right for longer.

Washing

  • Wash cold to prevent shrinkage.

  • Use a gentle detergent — avoid bleach.

Drying

  • Air dry or tumble dry on low heat.

  • High heat can shrink cotton and damage graphics.

Storage

  • Fold neatly to avoid stretching out necklines.

  • If hanging, use wide hangers to maintain shoulder shape.

---------------------------------------------------------------------------

Pro Tip: Fabric Memory

High-quality cotton and blends have what’s called “fabric memory”:

  • After a wash and dry, the shirt returns to its original shape — if properly cared for.

  • Avoid stretching the neck or sleeves while wet, as it can distort the fit permanently.

Pro Tip: Wash Before First Wear

Washing before wearing:

  • Removes any leftover dyes or production residues.

  • Allows for minor pre-shrinkage so you know exactly how the shirt will fit after that first wash.

  • Next Level 6210 Sizing Chart From Factory.
  • Comfort Colors 1717 Sizing Chart From Factory 
  • Independent Trading IND4000 Sizing Chart From Factory 

Cleaning Instructions

Take Care Of The Art

Here Is Some Tips/Tricks To Preserve The Art and the Product.

( You Don't have to do this, the quality of the print will hold up. However these tips will increase the life of the product)

  • Turn The Item Inside Out
  • Hang Dry Or Tumble Dry
  • Do Not Iron Design
  • Do Not Use Bleach
  • Machine Wash Or Cold Wash Only
  • Do Not Dry Clean

Customer Support

The Customer Will Always Be Number One. No Page Will Be Left Unturned.

If you ever need anything feel free to email at: cs@americansunitedinc.com

Contact Us

Straight From the Source

4.8

/ 5

Crushed

Phase Line Co. absolutely crushes it! The shirt material is next-level—soft, durable, and comfortable enough to wear all day without losing shape. The fit is perfect, especially on the arms, making you look like you actually hit the gym even if you skipped arm day. And the designs? Spot on. The owner nails that sweet spot between nerdy and tactical, so you can rock your fandom while still looking ready for the range. Easily my favorite brand. Phase Line Co. absolutely crushes it! The shirt material is next-level—soft, durable, and comfortable enough to wear all day without... Phase Line Co. absolutely crushes it! The shirt material is next-level—soft, durable, and comfortable enough to wear all day without losing shape. The fit is perfect, especially on the arms, making you look like you actually hit the gym even if you skipped arm day. And the designs? Spot on. The owner nails that sweet spot between nerdy and tactical, so you can rock your fandom while still looking ready for the range. Easily my favorite brand.

Good Quality

Phaseline has a wide variety of styles, they have excellent customer service. I have a son in the army and he loves when I send him random shirts I find. The phaseline ones I sent are his favorite. Phaseline has a wide variety of styles, they have excellent customer service. I have a son in the army and... Phaseline has a wide variety of styles, they have excellent customer service. I have a son in the army and he loves when I send him random shirts I find. The phaseline ones I sent are his favorite.

So Proud Of You

I was around in the Barracks when he started this brand. So proud of you man. I own a lot of Phaseline shirts. They have lasted a long time. This Dude truly has a passion for what he does. I was around in the Barracks when he started this brand. So proud of you man. I own a lot... I was around in the Barracks when he started this brand. So proud of you man. I own a lot of Phaseline shirts. They have lasted a long time. This Dude truly has a passion for what he does.

Mans Best Friend Shirt

Shirt is Dope, I got the Mans Best Friend Shirt. Getting the Hoodie Next. Quality is perfect. Shirt is Dope, I got the Mans Best Friend Shirt. Getting the Hoodie Next. Quality is perfect. Shirt is Dope, I got the Mans Best Friend Shirt. Getting the Hoodie Next. Quality is perfect.

Great Art

I don't write reviews usually, but this deserves one- The Art is a really cool style- the shading reminds me of old school comics I don't write reviews usually, but this deserves one- The Art is a really cool style- the shading reminds me... I don't write reviews usually, but this deserves one- The Art is a really cool style- the shading reminds me of old school comics

Sick Shirt

Love these shirts. Great quality and fit. They don't shrink when washed and my boy friend loved it. Love these shirts. Great quality and fit. They don't shrink when washed and my boy friend loved it. Love these shirts. Great quality and fit. They don't shrink when washed and my boy friend loved it.

Husband Loves It

I have ordered several times from Phaseline and love their products. I am never disappointed in the product. The Signature Tee fits a little tight in the chest but makes my man look buff. I have ordered several times from Phaseline and love their products. I am never disappointed in the product. The Signature... I have ordered several times from Phaseline and love their products. I am never disappointed in the product. The Signature Tee fits a little tight in the chest but makes my man look buff.

Great Quality Shirt

Fit great. Looks awesome. 10/10 Fit great. Looks awesome. 10/10 Fit great. Looks awesome. 10/10

Brand Worth Supporting

Great for everyday wear, casually or actively. Their shirts are Very comfortable, soft and well-fitting. I really like the back print. Arrowhead is a cool logo. Great for everyday wear, casually or actively. Their shirts are Very comfortable, soft and well-fitting. I really like the back... Great for everyday wear, casually or actively. Their shirts are Very comfortable, soft and well-fitting. I really like the back print. Arrowhead is a cool logo.

Great Fit

Love the fit of these shirts! Tighter in the biceps, and hides my beer gut... perfect! Love the fit of these shirts! Tighter in the biceps, and hides my beer gut... perfect! Love the fit of these shirts! Tighter in the biceps, and hides my beer gut... perfect!

Favorite Shirt To Date

This is one of my favorite shirts! Every single time that I wear it, I get at least compliments about it. I've had the shirt for a while now, and it's been washed a bunch, and the image still looks great!The shirt itself is comfy, the dyes and print are still vibrant and fresh looking. And I'm planning on ordering another one of these shirts so I have a back up, haha! This is one of my favorite shirts! Every single time that I wear it, I get at least compliments about... This is one of my favorite shirts! Every single time that I wear it, I get at least compliments about it. I've had the shirt for a while now, and it's been washed a bunch, and the image still looks great!The shirt itself is comfy, the dyes and print are still vibrant and fresh looking. And I'm planning on ordering another one of these shirts so I have a back up, haha!

Cool Graphics

good quality. cool graphics!!! good quality. cool graphics!!! good quality. cool graphics!!!

Will Be Buying More

Love the fit and feel of this shirt. Love the fit and feel of this shirt. Love the fit and feel of this shirt.

Perfect Shirt Perfect Hoodie

In love with this shirt. Got tons of compliments and some people even asked where to get one. It’s soft and lightweight making it great for warmer weather.The Hoodies are also warm. In love with this shirt. Got tons of compliments and some people even asked where to get one. It’s soft... In love with this shirt. Got tons of compliments and some people even asked where to get one. It’s soft and lightweight making it great for warmer weather.The Hoodies are also warm.

Great Art Great Shirt

I bought two of these t-shirts as gifts. I have had great feedback from them. They say that the quality of the shirts is well made, they love the print, and the color. The material was soft for a t-shirt with print, and has held up in the washing process. Great product for the price. I would purchase again. I would recommend. I bought two of these t-shirts as gifts. I have had great feedback from them. They say that the quality... I bought two of these t-shirts as gifts. I have had great feedback from them. They say that the quality of the shirts is well made, they love the print, and the color. The material was soft for a t-shirt with print, and has held up in the washing process. Great product for the price. I would purchase again. I would recommend.

So Soft!

It's SOOO SOFT!!! The length is absolutely perfect and the sizing is ON POINT!! The design is nice and it washes very well too. A bit pricey but would purchase again, it's better than your average tshirt!! It's SOOO SOFT!!! The length is absolutely perfect and the sizing is ON POINT!! The design is nice and it... It's SOOO SOFT!!! The length is absolutely perfect and the sizing is ON POINT!! The design is nice and it washes very well too. A bit pricey but would purchase again, it's better than your average tshirt!!

Better Than Expected

I can tell Phaseline really cares about what they do. The artwork on the shirts is very different from what you usually see, and the quality of the material is way better than I expected. My order did take a little longer to arrive than I expected, and the fit was a bit snug for my liking. I messaged support and they got me all fixed up. Nothing terrible, just something to be aware of when ordering. All in all, it’s a nice company with a lot of potential. I can tell Phaseline really cares about what they do. The artwork on the shirts is very different from what... I can tell Phaseline really cares about what they do. The artwork on the shirts is very different from what you usually see, and the quality of the material is way better than I expected. My order did take a little longer to arrive than I expected, and the fit was a bit snug for my liking. I messaged support and they got me all fixed up. Nothing terrible, just something to be aware of when ordering. All in all, it’s a nice company with a lot of potential.

Hat Is Great

I bought the Dad Hat back in December and its held up the whole time. I bought the Dad Hat back in December and its held up the whole time. I bought the Dad Hat back in December and its held up the whole time.

Art Is Sick

My friend sent me this through instagram. I was worried at first- because I usually don't buy stuff online. It shipped pretty quick and I was extremely surprised by the amount of detail in the art. Shirt holds up. My friend sent me this through instagram. I was worried at first- because I usually don't buy stuff online. It... My friend sent me this through instagram. I was worried at first- because I usually don't buy stuff online. It shipped pretty quick and I was extremely surprised by the amount of detail in the art. Shirt holds up.

Great Company

The designs are definitely unique and you can see the effort put into them. My order wasn’t perfect — one shirt had a small misprint and shipping took a bit longer than I’d hoped. That said, customer service was polite and quick to respond. They sent me a new one and let me keep the old one. Not a flawless experience, but nothing that would stop me from giving them another try. The designs are definitely unique and you can see the effort put into them. My order wasn’t perfect — one... The designs are definitely unique and you can see the effort put into them. My order wasn’t perfect — one shirt had a small misprint and shipping took a bit longer than I’d hoped. That said, customer service was polite and quick to respond. They sent me a new one and let me keep the old one. Not a flawless experience, but nothing that would stop me from giving them another try.

Fast Shipping! Good Product

Fits perfectly and I love the design. The shirt arrived earlier than expected. Fits perfectly and I love the design. The shirt arrived earlier than expected. Fits perfectly and I love the design. The shirt arrived earlier than expected.

Passed My Standard

I honestly feel like the fit and quality of these shirts is top notch. They’re comfortable and feel like material isn’t going to just shred or fail. I like the designs a ton, and I’m looking forward to getting my hands on some more of them! Also I get a lot of comments on the shirts, either the design or quality, or both.  I honestly feel like the fit and quality of these shirts is top notch. They’re comfortable and feel like material... I honestly feel like the fit and quality of these shirts is top notch. They’re comfortable and feel like material isn’t going to just shred or fail. I like the designs a ton, and I’m looking forward to getting my hands on some more of them! Also I get a lot of comments on the shirts, either the design or quality, or both.