100% GOTS certified organic cotton. A safer and gentler choice for babies, and for our environment. Quality, YKK brand double zip for easy changing. Fold-over cuffs for a convertible bootie. Extra length in arms and legs for growing room. Non-toxic iron-on label means no itchy tags. Flat-stitching means no irritating inner seams. Double stitched hems and bindings for durability.