The Noonoo Pie Tie is a baby wrap carrier which is made of a long piece of soft, comfortable fabric . We have the perfect blend of 95% cotton and just a little added lycra for stretch so that you can enjoy all the benefits that natural cotton fibers provide, as well as the added flexibility and support that the lycra provides. The 4 way stretch in our fabric means that you wont find yourself constantly readjusting the wrap to get it right. The right fabric is the key element in a stretch wrap that works well ! If you have too much stretch or the fabric is too thin, your wrap will sag and not support the weight of your baby comfortably. If you don’t have enough elasticity, it becomes difficult to get a comfortable fit as it wont stretch around your baby.