Free Shipping On Orders over $75
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October 14, 2026 5 min read
Every dinosaur fan has a favorite, and for most of them it's the one with the big head and the small arms. A T-Rex shirt is the easiest dinosaur shirt to get right as a gift: nobody needs it explained. We make more than forty of them, from a plain Tyrannosaurus on a tee to a T-Rex attempting a pull-up, in sizes from a 2T toddler to an adult 5XL.
This guide sorts them by who's wearing them, with what each listing actually says about fabric, fit and how long it takes to arrive. Every shirt is printed when you order it.
| Shirt | Who it's for | Sizes | Price |
|---|---|---|---|
| T-Rex (adult) | Adults | XS–4XL | $24.99 |
| Half Moon T-Rex | Adults | XS–4XL | $24.99 |
| Samurai T-Rex | Adults | XS–4XL | $24.99 |
| Rex's First Pullup | Adults (runs big) | S–3XL | $24.99 |
| Cool Dadasaurus Rex | Dads | XS–5XL | $24.99 |
| T-Rex (kids) / T-Rex Fracture | Kids | Youth S–XL | $24.99 |
| T-Rex Love | Girls | Youth S–XL | $30.99 |
| T-Rex or Treat | Adults / toddlers | XS–5XL / 2T–5T | $24.99 / $22.99 |
| T-Rex Winter Forest | Adults | XS–5XL | $24.99 |
Start with the plain one. The T-Rex adult dinosaur shirt is exactly what it says: a Tyrannosaurus design on a soft tee, in nine colors from Black and Navy to Heather Prism Lilac and Pink, XS through 4XL, $24.99. The listing describes 100% combed ring-spun cotton at 4.2 oz (heather colors are blended with polyester), pre-shrunk, side-seamed, with shoulder-to-shoulder taping. Its size chart runs from 16½″ wide at XS to 30″ at 4XL, so if you're buying for someone else, measure a shirt they already like and compare.
Two more on the same shirt, same sizes and price, for when plain is too plain:
If the T-Rex is the punchline. Rex's First Pullup is a T-Rex versus a pull-up, which, given the arms, is the whole joke. It comes in Solid Black, Solid Indigo and Solid Midnight Navy, S–3XL. Chillin Rex is the relaxed one, in five colors including Solid Kelly Green, S–3XL. Both are 4.3 oz combed ring-spun cotton with a tear-away label, and both listings say they run bigger than usual, so take the smaller size if you're between two.
If you like the 80s look, Retro Rex lives in our separate guide to retro dinosaur shirts. Everything else is in the adult dinosaur shirt collection, about a hundred designs.
Cool Dadasaurus Rex is the one for a dad who will wear a dinosaur shirt to the school pickup and not mind. It shares the widest size run in this guide, XS through 5XL, in eight colors including Olive, Heather Dust and Steel Blue, $24.99. Combed ring-spun cotton, 4.2 oz, pre-shrunk. One limit the listing spells out: it can't ship to South Korea, Hong Kong, Taiwan or Japan.
The kids' tees share one shirt: 100% soft jersey cotton (heathers are part polyester), pre-shrunk, side-seamed, a relaxed unisex fit, youth S–XL. The listing's chart goes from 15¼″ wide and 20⅞″ long at S to 18¼″ wide and 24⅜″ long at XL.
For more, the boys' dinosaur shirts and girls' dinosaur shirts each have around forty designs, and plenty of them are T-Rexes. The cut is the same unisex fit either way, so shop both.
For the smallest fans, the toddler dinosaur shirts come in 2T–5T.
T-Rex or Treat is our Halloween T-Rex, XS–5XL for $24.99, and there's a toddler version in 2T–5T for $22.99. Be honest with yourself about the date: the adult tee quotes up to 5 business days to print and 7 to ship, so an order placed on October 14 could take until Friday, October 30 at the long end. Order this week, or buy it as a fall shirt for next year.
For the holidays, T-Rex Winter Forest is the one with the biggest color choice of any shirt in this guide, twelve, from Ocean Blue to Lilac, XS–5XL. Christmas Arms Rex is the tiny-arms joke in Christmas colors, including Solid Red and Solid Banana Cream, XS–3XL, and like the other 4.3 oz tees it runs big. The rest of the holiday range is in the dinosaur Christmas collection, and our dinosaur Christmas gift guide covers stockings, ornaments and wrapping paper too.
Production and shipping add together, so work back from the longest time each listing quotes, with a few days to spare:
| Shirt | Longest quoted time | Order by |
|---|---|---|
| Dadasaurus Rex, Winter Forest, T-Rex or Treat | 5 + 7 business days | Thursday, December 3 |
| Toddler T-Rex or Treat | 4 + 8 business days | Thursday, December 3 |
| T-Rex adult, Half Moon, Samurai, Pullup, Chillin, Christmas Arms, kids' tees | 6 + 5 business days | Friday, December 4 |
These are our estimates from the listings' quoted ranges, not a delivery guarantee. Shipping is US only, and tracking arrives by email once the order ships.
What's the biggest size? 5XL, in Cool Dadasaurus Rex, T-Rex Winter Forest and T-Rex or Treat. The plain T-Rex, Half Moon and Samurai tees go to 4XL; Rex's First Pullup, Chillin Rex and Christmas Arms Rex stop at 3XL.
Do they run true to size? Rex's First Pullup, Chillin Rex and Christmas Arms Rex say they run bigger than usual. The plain T-Rex, Half Moon, Samurai and kids' listings include a size chart; compare it against a shirt that already fits.
Can I get adult and kids' T-Rex shirts that go together? Yes. There's a T-Rex tee under the same name in adult XS–4XL and youth S–XL, and T-Rex or Treat comes in adult and toddler sizes. Check the photos to make sure the designs match the way you want.
Is there a long-sleeve T-Rex shirt? Not right now; every T-Rex tee here is short-sleeved.
Do you sell T. Rex band shirts? No. If you're after Marc Bolan's T. Rex, you want a band-merch shop. Ours are the dinosaur kind.
If you're buying one T-Rex shirt and want the safe choice, start with the plain T-Rex tee: nine colors, XS–4XL, and nobody will ask what it is.
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