Opna Tech 100% Poyester - Designed to keep you dry and comfortable while maintaining a perfect fit for all your activities. Sizes available - Regular, Tall, LT & XLT. S, M, L, XL, 2XL, 3XL, 4XL, LT, XLT, 2XLT, 3XLT, 4XLT Dri Fit Performance - Incredibly fast drying with 4 way stretch, UV Proof & UPF protection. Perfect for Working Out, Running, Jogging, Basketball, Exercise & all other sports. (Great Compression Shirt - Size down 1 full size for compression fit) A superior product at a value price: If you like the quality of the top brands, but don't like the higher prices, then you'll love our Opna(tm) Athletic Wear. Shop with confidence…100% Satisfaction Guaranteed. Great for most all sports or just being casual. These men's activewear shirts are lightweight, sweat wicking and have an athletic design.