Our mini crib sheets are silky soft to the touch and perfectly sized for your mini crib or pack-and-play mattress. Breathable bamboo is cool and oh-so-comfortable on delicate skin, while the stretchy material is also elasticized all around for a safe, snug fit. 97% Rayon made from Bamboo, 3% Spandex Fully elasticized Mini crib size 24 in x 38 in