Kids Compression Shirt Underwear Boys Youth Under Base Layer Short Sleeve Top SK Fast dry, absorption, moisture management with Functional Fabric (Coolon) Soft, super light material, constant temperature keeping fabric provides best body condition Spandex with high-elasticity allows the sweat to be quickly absorbed and dried Best choice for outdoor activities, sports, baseball, running, cycling, hiking, golf, fising Perfect fit to the body - high quality product Made in Korea (Korea fabric not in China)