Made with the best quality Merino wool, Sckoon Stcik n' Snap Fitted Wool Diaper Cover is easy to wash by machine. In addition to its die-hard velcro, it comes with 3 snaps in each side (newborn and small size come with 2 snaps in each side) - that means easy to adjust as your baby grows, and it holds tight even with a lot of movements. The super durable elastic band is soft for skin yet can last forever! The first fitted wool diaper cover comes in with fold-back-tub to avoid stickeness during laundry. Made in Japan. Small 3.5-8.5kg 7.0-17lb Meduim 8-11 kg 15-22 lb Large 10-14 kg 20-26 lb