100% COTTON: soft, cosy and breathable for a better night's sleep. TWO WAY ZIPPER: full length zipper from chin to ankle, zips from top-down and bottom-up for easy nappy and outfit changes. COMFORT ZIP: is thin and flat for comfortable tummy time. It's fully concealed on the inside and features a chin guard, to protect delicate skin. FOLD OVER FOOT COVERS: cosy foot covers on all sizes allow baby to have feet in or out. No more lost socks! FOLD OVER SCRATCH MITTS: included on all sizes. Use them to prevent scrathing itchy skin or use them as instant gloves when out and about.