* 98% Organic Cotton, 2% Spandex- Ultra Soft & Stretchy. Best Blend for Natural Breathability with More Durability and Stretch. * Footed Zip Front Pajamas make Dressing your Baby Fast and Easy! * Sizes 6-9M and up have non-slip foot grips * Sizes Preemie, NB & 0-3M have fold over cuffs to cover little hands. * 2-Way Zipper: Zips from the top down and bottom up- Highest Quality YKK Zipper and Lead free snaps Introducing our Newest Fabric Blend: Ultra soft & stretchy 98% Organic Cotton with 2% Spandex- creating a natural, breathable, durable, stretchable fabric unlike any other. One zip to put on. Zips all the way down one leg for easy dressing.