The Children's Place Baby Boys' Sports Stretchie Footie Body: 100% Cotton; Trim: 98% Cotton/2% Spandex Imported Machine Wash Made of 100 percent cotton in a rib knit. Rib-knit trim at neck, sleeve and leg openings made of 98 percent cotton/2 percent spandex Zips from snap-tab neck to baby's left ankle for quick changing Tag less neck label For child's safety, garment should fit snugly. This garment is not flame resistant. Loose fitting garment is more likely to catch fire