Billy Thompson and Randy Choi from Orange County, California are the two entrepreneurs behind Thompson Tee, an undershirt that prevents sweat stains. They pitch the business on Shark Tank (May 5), where they explain that the shirt uses “hydro-shield sweat-proof technology” and all of the t-shirts (which are handcrafted in the U.S.) come with “an unconditional 30-day sweat-proof guarantee.”
The Thompson Tee comes in a variety of men’s designs (crew neck, v-neck, deep v-neck), women’s designs (slim fit, original fit with scoop neck) and in colors (white, gray, and black). All sell for $24.99 online. Shark Tank airs Fridays at 9pm on ABC.