Keep Your Cool With ThermApparel Swag!


Our Swag Shop is open! Be the coolest person you know with ThermApparel Tees and Cooler Bags. Find your correct size with our free Fit Kit and stick ThermApparel anywhere with a free sticker. 





Cooler than you. 

Help spread the word and show off your love of ThermApparel with a brand new super soft, very comfortable and lightweight tee. ThermApparel tees remain looking and feeling perfect wear after wear. 



  • Sizes: XS, S, M, L, XL, 2XL, 3XL
  • Weight: 4.3 Oz
  • Comfortable and soft, the perfect tee for everyday wear.
  • 100% combed ring spun cotton.
See the Tees





Keep You Cool Cooler Bag

Tired of your extra packs melting before you need them? Keep you UnderCool and extra packs cooler for longer!


The ThermApparel Cooler Bag has enough space to hold 2 vests with 2 sets of packs or the equivalent of six 12 Oz. cans. 

Comes with re-freezable ice inserts, made from cubes of pure USA water, to keep your vests and packs cool up to 4 hours!

There is a 36" adjustable strap for easy carrying and features a front slip pocket for your phone or keys.


FOLDABLE: Our coolers fold flat to save space. 8" W x 10" H x 4" D
REUSABLE: Refreeze the cubes of pure USA water and reuse again and again.
EFFECTIVE: Extra cooling packs and vests stay cool for hours

Keep Your Cool Cooler Bag





Need Help With Sizing?

We have just the thing. The ThermApparel FitKit is loaded with tips and suggestions and a handy measuring tape so you will get the correct size when you order.


Want a free FitKit sent to you? Fill out the form at the bottom of the sizing page call 855-232-7233, email, or live chat and we will pop it in the mail. 


Find Your Right Fit





Free Sticker

Show off your ThermApparel pride with a durable vinyl, die cut sticker.


Want a free sticker sent to you? Order one in the shop call 855-232-7233, email, or live chat and we will pop it in the mail.


ThermApparel is a small business making big waves in the heat sensitivity world by designing the first lightweight, comfortable and invisible cooling vest, UnderCool. Check us out online, on our blog, or on FacebookTwitter, PinterestLinkedIn and Instagram.

Please let us know if you have any other questions or ideas in the comments below, we will follow up. You can always reach us via: Live Chat -  |  Email -  | Phone - 855-232-7233 |  Address: ThermApparel LLC. 40 Franklin St. 4th Floor, Rochester, NY 14620.

#thermapparel #undercool #coolingvest #heatintolerance #swag #coolerbag #stickers #fitkit #tshirt