Lightweight merino wool diaper cover works well with any prefolded, fitted or flat diaper. To create a heavy duty overnight solution, combine EcoAble fitted cloth diapers with this pull on wool cover.Wool cover regulates moisture and remains comfortable even when wet.Knitted nappy pants feature a wide waistband and leg cuffs that can be folded in half. This allows for a perfect fit even over thick diapers, and prevents leaks.Organic wool covers should be lanolized before first use. Wool covers can stop small amounts of urine. If the wool soaker becomes slightly damp, it can be air dried and reused. Wool has self-cleaning properties that reduce the need for washing. Once all the lanolin is used up and the shell no longer repels moisture, lanolize the knitted diaper cover to restore its waterproof properties.The hypo-allergenic wool cover is made of the best quality natural materials and is excellent for gentle care of newborn baby's delicate skin.SIZE: The European size is equivalent to the baby's full height in centimeters. Suggested age is estimated and may vary. EU 50-56 cm | 0-3 monthsEU 62-68 cm | 3-6 months EU 74-80 cm | 6-12 months EU 86-92 cm | 1-2 years EU 98-104 cm | 2-3 years EU 110-116 cm | 3-5 years100% Organic Virgin Merino Wool.CARE: Wash by hand in cool water with detergent for wool. Do not rub. Rinse with plenty of water. Wrap up the wool cover in a towel and squeeze out excess moisture. Gently stretch into shape. Air dry flat. Made in Germany.