PRICES MAY VARY. 80% Polyester, 20% Coolmax Microfiber CoolMax, a division of the Lycra Company, features a proprietary blend of ultra-fine microfiber and moisture-absorbing fabric. Lab-tested and certified, CoolMax enhances evaporation for a cooling effect, ensuring a cozy and comfortable night's sleep CoolMax pulls moisture away from the skin and spreads it across the fabric allowing for quicker evaporation keeping your body cooler and drier. It is perfect for warmer weather helping those who