Surround your baby in pure softness. SwaddleDesigns 100% Cotton premium muslin zzZipMe Sack is perfect when baby is ready to transition from swaddling. The breathable, soft open weave wearable blanket replaces loose blankets for safer sleep. Our SwaddleDesigns quality muslin with cheerful designs gets softer with every wash. The handy 2-way zipper zips down from the top making it easy to place baby into sack and also zips up from the bottom making diaper changes easy.