100% Jersey Cotton Ely's & Co.'s Pack n' Play Portable Crib Sheet Sets are created from lightweight, soft and breathable fabric. Composed of 100% high quality Jersey knit cotton, our Pack n Play sheets offer cozy, welcoming environment for babies to rest their weary heads as they drift off into nourishing slumber.Adjustable Elasticity: Fits Multiple Mattress Sizes Ely’s & Co’s specially designed sheet set includes flexible, stretchable elastic, enabling a great fit and tight seal on all standard mattresses sold for Mini Cribs, Porta Cribs, Pack n' Plays, and Playards, as well as mattress pads included with Pack n' Plays. Breathable, Soft Material: 100% High Quality Jersey Knit Cotton Pack n Play Sheet Mini Crib SheetBeautiful Presentation: Charming gift for baby shower with a striking, modern designClean with Ease: Machine washable, lightweight fabricEye on Safety: Firm elastic band around the entire pack n play sheet, with extra reinforcements for durability and safetyAdjustable Fit: Perfect for standard pack n' play, mini crib, portable crib and playard mattresses, up to 5" thick sheet dimensions: 24 x 38 x 5 inches