Looks like another cold St. Louis Mardi Gras this Saturday. You know what warms you up? Plenty of watered-down street Hurricanes...and UnderWarmers. 🔥. If you’re in the area, visit Old Mountain Gear Exchange. Or DM us and we’ll get you set up. #StayWarmMyFriends

Going to Philly or New England for the games this weekend? Hanging out in the snow, sledding with the kids? We are the American Express of Winter - “don’t leave home without it” 🔥

No automatic alt text available.
6 Reviews
Tell people what you think
Tom-Kay Russo
· December 21, 2017
I live in Florida and on a recent trip to the cold Midwest I did not have a winter coat with me. My daughter and I wore The Underwarmer while spending the day car shopping. And we all know how the col...d the winds of the Midwest are. (Especially walking around those car dealerships.) We were delighted how warm and toasty we were all day. I would definitely recommend purchasing The Underwarmer for any activity that involves being outside in cold temps. You will not be disappointed! See More
Erica Elder
· December 20, 2017
This product is WONDERFUL! I wore The Underwarmer at an all day tailgate and Chiefs football game. I can truly say that this kept me nice, warm, and cozy for the entire day! I wore mine directly over skin and was impressed by how comfortable yet snug the material fit. When investing time and money into an outdoor event such as a football game or hunting, you might as well spend the extra few dollars to have an Underwarmer to make your day enjoyable without the cold getting in the way! Will definitely be purchasing again. See More
Melissa Bagnell
· December 21, 2017
I would recommend this product to anyone wanting to stay warm in the cold outdoors! From tailgating to hunting and everything in between this product is exactly what you need to stay warm in chilling ...temperatures. I recently purchased them for my dad to take on a snowmobile trip up north and he will never go again without them! � See More
Thanks to KMOV in St. Louis and Paige Hulsey for the report on UnderWarmer. Paul Schaefer doing a great job!!

Thanks to KMOV in St. Louis and Paige Hulsey for the report on UnderWarmer. Paul Schaefer doing a great job!!

It looks like you may be having problems playing this video. If so, please try restarting your browser.
Posted by The UnderWarmer
The wild winter weather across the country is helping a pair of St. Louis brothers get their business off the ground.

“It’s gettin hot out herre!” UnderWarmer helping warm up the The Kansas City Chiefs tailgate at Arrowhead on Saturday. Four more games next week in cold cities. Get yours at 🔥🔥

Still need that last-minute stocking stuffer? St. Louisans can visit Old Mountains Gear Exchange in Webster Groves and pick yourself up one. Will make a great gift for anyone going hunting, to outside sporting events, snow tubing, skiing, and all other winter activities. Warm Yourself!!

No automatic alt text available.

Need a last-minute stocking stuffer for Christmas? Use promo code SANTA and get UnderWarmers for only $8! 2-day shipping available. Great for outdoor games, snow sledding, hunting, working....etc. Warm Yourself 🔥🔥

Image may contain: text

Check out this video of Jeff, who wore the UnderWarmer a few times last fall during hunting season.

Jeff talks about what makes the UnderWarmer so great for hunting.

The UnderWarmer makes a great first layer under a hoodie or a sweatshirt when going to football games, soccer games, hunting or working outside. Get yours today for only $11. Click "shop now" above.

Image may contain: 1 person, smiling

Our Kickstarter will run for the next 30 days and we need your support to raise capital for our first big shipment. There are awesome deals on pre-buys with some cool giveaways. Check it out and please share.

Aug 9, 2017 - Aug 23, 2017
The latest Tweets from UnderWarmer (@UnderWarmer). The UnderWarmer® is a single use, compression undershirt with 8 heat elements that reach temperatures over 100 degrees, providing warmth up to 10 hours
The UnderWarmer updated their profile picture.
Image may contain: 1 person

Behind the scenes of filming the UnderWarmer commercial with JM films.
Paul Schaefer
Matt Wolk...
Cortney Vaughn

See More