Silkberry Baby Bamboo Unisex-Baby Newborn Footie Sleeper 97% rayon from bamboo, 3% spandex Non- irritating, hypo-allergenic, breathable and absorbent Center front zipper slides up to open for easy diaper changing and dressing, elastic at ankles for a perfect snug fit Wear snug-fitting, not flame resistant Award winning products (National Parenting Publications Award & Creative Child Magazine)