Advanced moisture-wicking technology in the Dri-Tec Performance gray Split King/Split California King Bed Sheet Set helps you sleep drier, cooler and more comfortably throughout the night. The soft, conforming material moves with you throughout the night, providing a no-cling, no-pull stretch. CFM Certified for maximum air flow, these sheets allow your body to achieve optimal temperature regulation. This set includes 1 flat sheet, 2 fitted sheets and 2 split king/split California king pillowcases.