QuickZip Stay-put Base fits safely and securely around the mattress, covering the four sides and the whole underside so it can't pop off. Zipper is accessible for quick and easy Zipper Sheet changes.
For use with QuickZip Easy Change Crib Zipper Sheet (sold separately or in the QuickZip Crib Zipper Sheet Set). Crib Zipper Bases are interchangeable with all Crib Zipper Sheets.
100% Cotton, Preshrunk for a great fit that lasts.