These organic merino wool nappy shorts allow ample room for a baby's diaper and are designed to keep the whole torso warm. They can be used as a cloth diapering cover or worn as shorts. Merino wool is the softest type of wool. It allows the skin to breathe, and absorbs moisture without feeling damp and retains warmth even when wet. Merino wool is self cleaning and does not retain odors - it’s an incredibly hard working fiber and you can trust that it will keep your child warm and comfortable!