About this itemMOISTURE-WICKING BREATHABLE STRUCTURE: SHEEX ARCTIC AIRE-MAX Pillowcases offer superior ventilation to maximize the passage of air and moisture, which helps reduce sweating by keeping your head and body cool throughout the night.SUSTAINABLE PERFORMANCE FABRIC: Made with 100% Tencel Lyocell hydrophilic eucalyptus tree fibers, our eco-friendly pillowcases increase moisture absorption via quick-drying microscopic channels which deliver refreshingly revitalizing sweat-free sleep.INNOVATIVE COOLX TECHNOLOGY: Designed with a sateen Tencel weave that gives our elegant pillowcases a smooth luxurious feel, our lightweight performance fabric speeds moisture release while naturally reducing bacterial growth without using any toxic chemicals.LONG-LASTING DURABILITY: Our comfy sheet set and pillowcases get softer every time you wash them. Engineered not to shrink, fade or pill. Wash in cold water. Don??t use bleach, fabric softeners or dryer sheets and set your dryer to low heat, tumble dry.LUXURIOUS SWEAT-FREE SLEEPING: SHEEX is a cutting-edge performance bedding company that allows your sleeping body to naturally cool itself. Our technical fabrics help reduce night sweats by creating a rejuvenating, comfortable and cozy cocoon that supports a deeper, more restorative sleep.