Zipper footies are the best. Cozy, buttery soft essentials for your little one. Our footies are made from a super soft bamboo and spandex blend for the most delicate skin. High quality and extreme stretch for longevity, plus breathability and comfort in both the warmest and coolest climates. Feet fold down for 0-3 months. grandmaapproved LTKSeasonal LTKbaby LTKkids