Long Sleeve Shirt - Marine Reptiles

$32.95
$32.95
Shipping calculated at checkout.

Get it with free shipping between and

The oceans of the past come alive with our "Marine Reptiles" long-sleeved youth shirt. This design features hand-drawn line illustrations of real prehistoric marine reptiles—from Mosasaurus to Plesiosaurus—making it the perfect top for cooler days and curious minds. Ideal for budding marine biologists, dinosaur fans, and underwater adventurers.

• 100% Airlume combed and ring-spun cotton
• Fabric weight: 4.2 oz/yd² (180 g/m²)
• Regular fit
• Side-seamed construction
• Ribbed cuff
• Sourced from Honduras, Nicaragua, US. Designed in California.

Size guide

  LENGTH (inches) WIDTH (inches)
S 21 ⅛ 15 ¼
M 22 ¼ 16 ¼
L 23 ⅜ 17 ¼



Size
Product mockup
Product mockup
Child wearing a blue long-sleeve shirt with white dinosaur illustrations on a plain background
Person wearing a blue long-sleeve shirt against a light gray background
Product mockup
Product mockup
Product mockup
Child wearing a blue long-sleeve shirt with white dinosaur illustrations on a plain background
Person wearing a blue long-sleeve shirt against a light gray background
Product mockup
Product mockup
Product mockup
Child wearing a blue long-sleeve shirt with white dinosaur illustrations on a plain background
Person wearing a blue long-sleeve shirt against a light gray background
Product mockup
Product mockup
Product mockup
Child wearing a blue long-sleeve shirt with white dinosaur illustrations on a plain background
Person wearing a blue long-sleeve shirt against a light gray background
Product mockup
Our Picks

You May Be Interested

Explore Now Explore Now

Let customers speak for us

from 353 reviews

Functional, everyday , no fuss, great message cap! The color will make this one last through many adventures to come.

Raluca
Baseball Cap - "World Changer"

Great shirt for my son - comfortable and love the STEM theme!

Denise
STEM Tee - “Code the Future”

My kids love their new shirts!

Karen
Outdoors Tee - Rock Solid

Bought this as a gift and they recipient loved it!

Karen
Toddler T-Shirt – Reef Defender

My son loves this Tshirt!Very nice looking and great feel fabric, with a beautiful design! Exactly what we were hoping for! Looking forward to my kiddo enjoying it through many washes and summer days!

Raluca
BOY Word Cloud Cat Organic Cotton Tee – Empowering Boys Shirt with Positive Traits | Eco-Friendly Gift for Kids

Functional, everyday , no fuss, great message cap! The color will make this one last through many adventures to come.

Raluca
Baseball Cap - "World Changer"

This design has a very special place in our hearts and we love it! We have a long sleeve version of it that has been a favorite for many months and needed to get a summer ready one too! Kiddo is obsessed with it! <3

Raluca
"Unapologetically Unique" - Long Sleeve Shirt

Absolutely love these T-shirts! The quality is fantastic — comfy, stretchy, and holds up well after washing. The print is super cute and unique — I’ve already gotten compliments! Will definitely be ordering more.

gayathri
Expressive T-shirt - Bruh!

Absolutely love these T-shirts! The quality is fantastic — comfy, stretchy, and holds up well after washing. The print is super cute and unique — I’ve already gotten compliments! Will definitely be ordering more.

gayathri
Expressive T-shirt - Bruh!