Nylon, UV Protectant, Moisture Wicking and Quick Dry. These T-Shirts look like a standard T, but have all the Tech benefits. This garment is 3D Knitted (Welcome to the future!) on a state of the art precision machinery, with thread composition that we have formulated (Microfiber Nylon 79% + 21% Polyester). This composition of fibers bring longevity to this staple garment and the quick dry /moisture wicking performance is absolutely superior. QUALITY 79% NYLON / 21% POLYESTER DESCRIPTION FINISHED IN THE U.S.A. ULTRA SOFT MICRO FIBER KNIT MOISTURE WICKING QUICK DRY SUPERIOR BREATHABILITY UV PROTECTANT RICH PATCH LOGO ON LEFT CHEST BLOOD LINE LOGO MARK AT SLEEVE Get more details - https://cghabitats.com/collections/t-shirts-long-sleeves/products/standard-tech-t-shirt