Finally, working gear that works as hard as you do. For all day comfort and ease of wear, Tec ComfortGear utilizes TRIPLE TEC advanced innovation: X-Temp???, FreshIQ??? and Slide On Technology. X-Temp??? technology adapts to temperature, environment, and activity to keep you cool and dry.FreshIQ??? advanced odor protection technology attacks the odor-causing bacteria in your clothing that causes your underwear and socks to smell ??? so now you can feel fresh all day.Slide On Technology, designed to make compression garments easy to put on and take off. Graduated, all over stretch for comfort compression.Lightweight breathable fabric. UPF rating of 50+ for protection against harmful UV rays.ComfortSoft??? waistband for comfort that moves with you.Soft seams help prevent chafing.Tag-free for itch-free comfort. To help preserve and protect our parks for future generations, HanesBrands has partnered with the National Park Foundation, the official charity of America’s national parks, to support America’s most treasured places.