Hot Chillys Men's MTF 4000 Long Sleeve Crew Neck Shirt 92% Polyester/ 8% Spandex Made in the USA and Imported Features enhanced moistue control to keep skin dry Slight Drop Tail to keep your shirt tucked in during activity Flat seam construction reduces bulk and abrasion Treated with Odor Blocking Properties to reduce odor retention in the garment Made with our Ultraviolet Protection Factor fabric