USE CASE: You can wear this comfortable compression shirt all day, under work shirts, gym clothes, or on its own. It's slimming, supportive, and low-profile, so only you know it's underneath. Also great for workouts, running, pickleball, and everyday wear. INFRARED INFUSED: Infrared Yarn is infused with ceramic infrared-emitting particles, which absorb your body's natural heat energy. These ceramic particles then release infrared heat energy back into your body, helping to temporarily improve circulation. ALL-DAY COMFORT: Proprietary 4D stretch compression fabric delivers unrivaled stretch and recovery, for compression clothing so comfortable you'll want to wear it all day. With UPF 50 for added sun protection. WICKING & BREATHABLE FABRIC: Designed to wick sweat and breathe well, so you stay dry and comfortable throughout the day. ODOR CONTROL: Patented Copper Znergy fabric technology provides increased odor control. It's 100% infused into all of our garments and won't wash out. Slimming, supportive, and ready for anything, the Tommie Copper Infrared Compression Shirt is your go-to base layer for work, workouts, or everyday wear. Designed to be worn comfortably under shirts or on its own, it features 4D stretch compression fabric that moves with you and supports muscles from dawn to dusk. Ceramic-infused infrared yarn reflects natural body heat as infrared energy to help temporarily boost circulation, while patented Copper Znergy technology keeps odor at bay. With moisture-wicking, breathable fabric and UPF 50 sun protection, this shirt works as hard as you do—all day, every day.