warm and comfortable. the lebron valor hero men's sweatpants are made with insulating fabric to help keep muscles at optimal temperature. mesh side panels offer breathability and zip vents at the hem deliver versatility.. benefits. therma-fit fabric to help keep you warm and insulated. elastic waist with drawcord for a snug, adjustable fit. mesh side panels for ventilation. vented hem with zip for versatility and easy on and off when wearing basketball shoes. side pockets for easy access storage. product details. fabric: therma-fit 100% polyester. machine wash.