The All In One Swaddle Bag is made from the softest cotton for your babies delicate skin, yet just enough tightness to feel safe like they are being held and touched. 21, 22,The fabric has also enough stretch to ensure the baby is able to stretch out allowing their legs and hips to fall into a "natural frog like" position. Your Baby's arms will feel free to move around and fall into their own "natural sleep position". The clever designed cuff can also be rolled back so baby and mum can have skin to skin contact during feeding. Angel Arms for 180 degree movement Clever roll back cuffs to stop those little finger nails from scratching Soft Zipper Cover to ensure baby's skin on the neck is not caught in the zip.