Classic cotton has gotten a high-tech twist in these lightweight, durable sheets. Bedgear hyper cotton California king bed sheets from RC Willey are light, smooth, cool and comfortable. These sheets have the soft feel of cotton, plus the addition of fabric technology that facilitates air circulation, helping to regulate your temperature as you sleep. Have no doubt - you’ll want to experience them for yourself. Includes two pillowcases, one fitted sheet and one flat sheet. California king size includes: 2 pillowcases, 1 fitted sheet, 1 flat sheet Quick dry technology that provides fast evaporation of moisture Allows 4 times the air flow compared to 100% cotton sheets, allowing your body to achieve optimal temperature regulation Powerband-ensures most secure fit and grip on your mattress and works great with adjustable bases Luxe powerband pillowcase ensures a snug fit to your pillow Seamless fitted sheet creates a smooth sleep surface and longer lasting construction Easy Care - machine wash & dry. Materials reduce allergens for undisturbed, sneeze-free sleep Ideal for all seasons Fits up to an 18" mattress