Sam American Flag Hawaiian Shirt for Men — Sam Picnic Rocket all-over print flat lay
Sam American Flag Hawaiian Shirt for Men — Sam Picnic Rocket styled on model
shirt print detail — Sam Picnic Rocket
button-down collar detail — Sam Picnic Rocket Hawaiian shirt
shirt fabric detail
Sam American Flag Hawaiian Shirt for Men — Sam Picnic Rocket all-over print flat lay
Sam American Flag Hawaiian Shirt for Men — Sam Picnic Rocket styled on model
shirt print detail — Sam Picnic Rocket
button-down collar detail — Sam Picnic Rocket Hawaiian shirt
shirt fabric detail

4th of JulySam Picnic Rocket Classic Patriotic Hawaiian Shirt for Men

$79.99 $39.99 -50%
POPULAR over people have bought this product in the last 24 hours.
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Step into summer celebrations with our Sam Picnic Rocket Classic Patriotic Hawaiian Shirt — an all-over Uncle Sam, picnic basket, firecracker, hibiscus, and leafy tropical print designed for men who want comfort and style without compromise. The Sam Picnic Rocket Classic Patriotic Hawaiian Shirt brings a playful usa shirt mood to a bright white short sleeve silhouette, blending red, white, and blue celebration artwork with vacation-ready floral energy.

The traditional button-down collar gives a clean, polished silhouette that wears equally well for backyard cookouts, patriotic weekend gatherings, and casual summer parties. Whether you're styling it with chinos for an evening out or open over a tee for casual daily wear, this men's Hawaiian shirt is built for the moment — and the photo. If you're searching for american flag shirts mens with more personality than a plain tee, this patriotic button down delivers Uncle Sam attitude, picnic-day charm, and firecracker color in one standout print.

Explore more: Patriotic Hawaiian Shirts · America 250 Shirts · 4th of July Shirts

  • All-over print: Uncle Sam, picnic baskets, firecrackers, hibiscus, and tropical leaves create a playful patriotic hawaiian shirt look.
  • Traditional button-down collar — clean, polished silhouette
  • Lightweight, breathable fabric with a soft hand feel
  • Reinforced stitching and durable button-front closure
  • Sizes XS – 5XL — big and tall friendly
  • Machine wash cold, tumble dry low

Built For: 4th of July cookouts, patriotic parades, backyard BBQs, family reunions, summer picnics, weekend parties

From the Patriotic collection at Shirtboom — independent men's Hawaiian shirts designed in the USA and offered under $50. The Sam Picnic Rocket Classic Hawaiian Shirt turns american flag shirts mens energy into a bold all-over print with Uncle Sam pointing graphics, woven picnic baskets, and red-white-blue firecracker artwork on lightweight summer fabric.

How does this men's Hawaiian shirt fit?
The Sam Picnic Rocket Patriotic Hawaiian Shirt has a relaxed men's fit; please refer to the size chart above for full chest and length measurements. It is also a strong match for made in the usa hawaiian shirts​. It is also a strong match for mens hawaiian shirts made in usa​. It is also a strong match for us flag button up shirt.
Can I wear this for July 4th cookouts?
Yes — this patriotic Hawaiian shirt is built for 4th of July BBQs, backyard parties, and summer gatherings with its Uncle Sam and firecracker print.
Is the print on the front and back?
Yes, the Sam Picnic Rocket artwork is an all-over print, with Uncle Sam, picnic basket, firecracker, hibiscus, and leaf motifs across the shirt.
Can I machine wash this patriotic button down?
Yes. Machine wash cold and tumble dry low to help preserve the color and shape of this patriotic button down after summer events.
Do you offer big and tall sizes?
Yes, Shirtboom offers sizes XS through 5XL. Check the size chart above to choose the best fit for this men's Hawaiian shirt.
Are these made in the USA Hawaiian shirts?
Shirtboom designs are created in the USA; manufacturing details vary by product. This usa shirt ships with standard Shirtboom return support.

Shipping Info

Processing Time

All orders are processed within 1 – 2 business days. This includes the time needed to prepare your items, transfer them to our warehouse, and package them with your name and address before shipment.

Shipping Time

FREE STANDARD SHIPPING - ON ORDERS OVER $79.00

Shipping Method Estimated Delivery Window Costs
Standard shipping $6.99

During periods of high demand or extreme weather, shipments may be delayed slightly.

Tracking Number

Once your order has left our warehouse, we will send you the tracking number with the confirmation email so that you can track the package online. For international shipping, tracking may stop once the package is handed over to the country's international carrier.

Return & Exchange

If for some reason you are not happy with your purchase, we will gladly work with you to correct the problems. Items can be returned/exchanged and refunded within 30 days of receiving the product, in the unlikely event of a damaged, defective, or wrong item delivered to you.

Choose Your Style

Classic collar

Classic Collar

Daily Wear

A timeless printed shirt style with a clean and versatile collar shape. Perfect for everyday wear, casual outings, vacations, and smart-casual occasions while showcasing the same standout all-over print design.

  • Same printed design with a classic collar silhouette
  • Best for everyday styling
  • Great with jeans, chinos, and shorts
  • Recommended if you want a safe classic choice
Cuban collar

Cuban Collar

Most Popular

A relaxed printed shirt style with an open resort-inspired collar. Ideal for beach vacations, summer parties, BBQs, and holiday looks, featuring the same bold all-over print in a more laid-back silhouette.

  • Same printed design with a relaxed open collar
  • Best for summer and vacation vibes
  • Perfect for standout prints
  • Recommended if you want the signature look

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• Safe Payments

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1. Real-time order tracking. Once your order ships, you'll receive an email with a tracking number. Follow your package end-to-end at Track Your Order.

2. Package protection. If your package is lost, damaged, or stolen in transit, we'll resend the item or issue a full refund — no questions, no return required. Just contact us within 30 days of the ship date.

3. Discreet packaging. Orders ship in plain mailers without product images or pricing on the outside.

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Size Guide

Relaxed Hawaiian fit. This shirt is designed with extra room through the chest and body.

  • Choose your usual size for a classic relaxed vacation fit.
  • If you are between sizes or prefer a cleaner fit, we recommend sizing down.
  • If you have broad shoulders, a larger chest, or prefer extra room, choose your usual size.

Measurements are garment measurements, not body measurements.

Fit Feedback

Real measurements from real ShirtBoom customers — use this to gauge how our sizes wear on different body types.

CustomerChestWaistWeightHeightSuggested SizeExpected Fit
Tyler G**104cm / 41″91cm / 36″81.6kg / 180lb173cm / 5′8MGreat / Relaxed
Marcus C**99cm / 39″71cm / 28″72.5kg / 160lb175cm / 5′9XSClean Fit
Daniel P**104cm / 41″84cm / 33″72.5kg / 160lb178cm / 5′10SGreat / Clean Relaxed
Jordan W**99cm / 39″104cm / 41″80kg / 176lb163cm / 5′4LLoose
Eric S**110cm / 43.3″100cm / 39.3″85kg / 187lb173cm / 5′8XLLoose
Size Chart
SizeChestShoulder WidthBottom OpeningShirt LengthSleeve Length
XS43″17.8″41″29″9.2″
S45.5″18.5″43.5″29.5″9.5″
M48″19.0″46″30″9.8″
L50.5″19.8″48.5″31″10.2″
XL53.5″20.8″51.5″32″10.5″
2XL56″21.8″54″33″10.9″
3XL59″22.8″57″34″11.3″
4XL62″23.8″60″35″11.6″
5XL65″24.5″63″36″11.9″
SizeChestShoulder WidthBottom OpeningShirt LengthSleeve Length
XS109451047423
S116471107524
M122481177625
L128501237926
XL136531318127
2XL142551378428
3XL150581458629
4XL157601528929
5XL165621609130
How to Measure
Shirt measurement diagram with 5 numbered measurements

1. Chest

Measure the full circumference around the chest at the fullest part, just under the arms — keep the tape level all the way around.

2. Shoulder Width

Measure straight across the back, from one shoulder seam to the other shoulder seam.

3. Bottom Opening

Measure the full circumference around the bottom hem opening of the shirt — all the way around, not just edge to edge.

4. Shirt Length

Measure from the highest point of the shoulder seam straight down to the bottom hem.

5. Sleeve Length

Measure from the shoulder seam down the outside of the sleeve to the cuff edge.

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