Flat sheet only clean no stains Add a touch of modern style to your bedroom with this Pottery Barn kids flat sheet. The twin size sheet features an all-over blue color with a baseball theme that will surely be a hit to any sports lover. Made of 100% cotton, this sheet promises a comfortable and soft feel that will make you feel relaxed and refreshed every time you sleep. The rectangular shape and modern style of this sheet will surely complement any bedroom decor. Suitable for teens, adults, and kids, this sheet is a perfect addition to your bedding collection.