Babyletto Pure Core Mini Crib Mattress With Hybrid Waterproof Cover Babyletto Pure Core Non Toxic Crib Mattress Dry Organic Cotton Cover Amazon.com : Babyletto Pure Core Mini Crib Mattress, Hybrid Waterproof Babyletto Pure Core Crib Mattress w Hybrid Quilted Waterproof Cover Introducing Babyletto Baby Bedding! Project Nursery Crib Accessories. Replacement cover. All Pure Mattress bundles come with an original cover. Waterproof cover made of non crinkly fabric Sized for full size crib mattresses This is a replacement cover for the mattress cover included with: Pure Core with Dry Cover mattress bundle (M5322BB) Coco Core with Dry Cover mattress bundle (M5326BB) Materials: Face: 100% Polyester (PET); Back: 100% Food Grade Polyethylene; Band: Elastic Country of origin: Taiwan (R. O. C.)