Our cozy collection is made from buttery soft bamboo viscose (aka unicorn) fabric. Our bamboo fabric blend is gentle on sensitive and eczema-prone skin, and each piece is tagless for ultimate comfort. This amazing unicorn fabric stays cool in summer and warm in winter to help keep your babe at the optimal temperature. Featuring a grow-with-me design that allows our bamboo styles to fit your babe up to 3x longer than average footies.  Our Bamboo Cozy Collection Features: YKK double zippers with a bottom that zips upward for diaper changes. 220 GSM all-season, insanely soft bamboo viscose fabric. Fold-over mittens for all sizes 0-3m through 6-12m long sleeves. Convertible foot cuffs for all sizes to fold-over from footie to footless. “Grow-With-Me” design for a 3x longer fit compared to average footies. No annoying snaps or buttons and no irritating interior tags. Snug fit to meet CPSC safety regulations compliance, never treated with flame-retardants or chemicals. FABRIC & CARE: 95% viscose from bamboo, 5% spandex. Machine wash cold, inside out, dry low. Wear snug fitting, not flame resistant.  Featuring our Updated Fit, a slightly more generous feel than our Classic Fit. We recommend your child's normal size.