Details: These super cute crib sheets are made from premium knit fabric which feels very soft to the touch and holds up well over many uses. Both lightweight and breathable, the knit fabric promotes a cool and comfortable night’s sleep. Wash before use to ensure the best fit and softness for baby. Perfectly designed to fit all standard baby mattresses. High quality elastic stitching around the entire crib sheet ensures a tight fit that looks clean and modern. The perfect fit keeps baby safe and comfortable.