TULUM SWAP SLEEP SACK - It is an ideal product for babies with its 100% organic cotton content, breathable structure and softness. -Our overalls are made of single layer organic cotton interlock fabric to reduce the risk of overheating. - A small amount of lycra is used to wrap babies better. -There are soft snaps in the arm area so that one or both of the baby's arms can be pulled out. -The design provides recommended healthy stretching for hips and legs. -Hidden and long zipper is used, which allows easy diaper changing. It is suitable for use at room temperature of -24-28 degrees. -No chemicals that could harm the baby are used in the raw materials and production processes of our products. -Our products have passed all washing and quality and performance tests. -Does not create allergy risk. -Our products can be washed at 30 degrees in a quick program. -We recommend that you do not iron at high temperatures. -Suitable for 0-4 months babies.