Nylon/Lycra construction Flat seams at armholes Engineered knit body Allows for areas of varying compression Heat transfer label at center back neck to eliminate irritation and chafe Product DescriptionDurable, comfortable and functional. 88% Tactel nylon, 7% nylon, 5% spandex. Three distinct zones of compression. Moisture wicking technology. Anti-microbial to reduce body odor. Quick-drying, Saddle shoulder [...]