YOU ARE BUYING ONE FITTED SHEET. 100% COTTON - WHITE. Please be sure to measure the depth of your mattress. YOU NEED TO ADD 10 CM TO THE DEPTH OF YOUR MATTRESS FOR A GOOD FIT. I.E. If your mattress measures 20 cm then your sheet needs to be 30 cm. Motel quality Comcale Sheets 50%polyester 50 % cotton percale. The term "percale" refers to the weave of the material, which is closely woven, producing a tighter smoother fabric that is of a high standard. Elastic all the way around. Sheets can be custom made if the size you need is not shown.