Polarmax Women's XTRDRY Long Sleeve Cotton Roll cotton 98% Transdry Cotton, 2% Spandex Dries 50% faster than regular cotton. Reduces cling, so you'll stay comfortable all day long. Reduces cling when wet/ Mid-weight with flat seam construction/Wicks/ Breathes/Quick Drying/Acclimate Fresh Anti-microbial/ anti-odor protection/relaxed fit Machine Wash and Dry, No Shrinking 100% Made in The USA