This Navy Cotton/Poly 4 Piece Cot Sheet and Pillow Case set is wrinkle resistant. They stay soft and luxurious with less than 1% shrinkage. Stronger than cotton. Perfect for sleep away camp beds, military beds, camper mattresses, and other cot beds! The cot sheet measures 33" x 75" (84 x 190 cm), 1 cot flat sheet measures 64" x 94" (162 x 239 cm) and 2 pillow cases each measure 20" x 30" (51 x76 cm). They are made of 60% cotton and 40% polyester.