This fitted diaper is made from soft organic cotton and has a very trim fit. The diaper features velcro fasteners that make it easy to adjust it on your baby and hidden elastic around the legs and waist to provide a snug fit without any pinching or red marks left on your baby"s skin. This pure cotton from Disana is very absorbent and comfortable next to your baby"s skin. The diaper features cotton liners sewn into the center of the diaper that make it even more absorbent. This fitted diaper does require a cover in order to be waterproof, and any type of cover may be used. Made by Disana, this fitted diaper is made from 100% organic cotton, certified organic by the International Association of Natural Textiles (IVN) and meets the Global Organic Textile Standard (GOTS) Made in Germany. Other Details: Care: This diaper may be machine washed and dried on low to medium heat. It should be washed before using it on a baby for the first time, and we recommend washing it 3-5 times before it becomes fully absorbent, which removes the natural oils found in organic cotton. Size Conversion Chart: Age Range (US size) 0-3 mo. 0-6 mo. 6-12 mo. 12-24 mo. 2-3 T 3-4 T Weight (lbs) 5-9 lbs 7-14 lbs 12-20 lbs 20-27 lbs 26-33 lbs 33-36 lbs Height (in) 17-21 inches 20-26 inches 24 – 29 inches 27 – 34 inches 34 – 38 inches 37- 40 inches European Size 50/56 62/68 74/80 86/92 98/104 110/116