Bamboo Wool Footies w/2 Way Zipper (Earthy)This footed sleeper is designed with two way zipper for easy dressing and diaper changing. Combining wool and bamboo in our products to work with a heating and cooling system is a fascinating feature. Both materials have inherent properties that contribute to good breathability, making them suitable for various climates and environments. Features: Top zipper slides down to open for easy dressing; Bottom zipper slides up to open for easy diaper