100% organic interlock cotton - GOTS Made from thick organic cotton interlock, our Booties are designed to keep little feet warm and covered from day one. A soft, wide band around the ankle helps them stay on securely — no more missing socks during naps, car rides, or cuddles. An easy addition to your hospital bag or first wardrobe, they pair perfectly with a matching Beanie or Bodysuit for those early weeks at home.