This sleeper is the perfect basic! It is made from 100% organic cotton, dyes and trims. Neck-to-ankle zipper (down one leg), for easy dressing/changing. Small zipper tab cover at neck for added safety and comfort They have fold over gloved sleeves for warmth and protection from self-scratching on sizes 0-3 and 3-6. All sizes include rubber-dotted grip soles to prevent slipping.