All our pajamas are made out of Bamboo viscose with a touch of spandex to allow stretch. Bamboo is soft and breathable so naturally perfect for baby skin. All BB Convertible One Pieces include the following: Hand mittens up to 6 months Foot grips on all sizes Runs true to size (should fit snug) Durable double zipper 95% Bamboo Viscose, 5% Spandex
