American Pillowcase King Size Flat Sheet Only - 300 Thread Count 100% Egyptian Cotton - Fitted Sheets Sold Separately for Set Guarantee (King/California King, White) Only 14 left in stock - order soon. Flat Sheet / White with black ribbons / from Portuguese / 100% Egyptian Cotton / 310 Count / Silken drape. This is a new/ never used, luxury fitted sheet and flat sheet for a California King bed from William - Sonoma. California King Flat Sheet Shiny silky feel Sateen cotton. 100% Cotton. Machine washable. Buy California King Bed Sheets at Macys.com! Browse our great low prices & discounts on the best California King bed sheets. FREE SHIPPING AVAILABLE!