The countertop sheet is made of 50% polyester -50% cotton fabric. It's the same quality as the MYC pol-alg bottom. We have 14 colors and 5 different sizes to be able to meet all kinds of needs, to all the bed sizes on the market. You can also combine it with the bottom sheet, the pillow cover or the reversible duvet cover. Composition: * 50% polyester -50% cotton. Measures: * 80/90 bed = 160x270 cm * Bed 105 = 180x270 cm * Bed 135 = 210x270 cm * Bed 150/160 = 240x270 cm * Bed 180/200 = 270 x 270 cm Caution: * Wash at a maximum temperature of 30ºC. * Wash strong colors separately. * Dry flat. * Iron at a maximum temperature of 110ºC.