Innovative Cooling FabricIceTech fabric continually dissipates body heat for a comfortable sleep climate. This breathable fabric is cool to the touch and is a great solution for those who sleep hot.Lab-Certified ProtectionThe laboratory certified H2PRO liquid proof membrane prevents fluids from contaminating your pillow. The quiet, vinyl-free barrier is designed to block out liquids and protect both sides of the pillow while allowing air to permeate for breathable comfort. Zippered EncasementThis encasement pillow protector completely encloses the pillow for total protection. A zippered end allows for easy application and removal, and it ensures a secure fit. MaterialsCover: 55 percent polyester, 45 percent polyethyleneBacking: 100 percent polyurethane.