These new version organic cotton diapers feature a slightly thicker sponge, which guarantees greater absorbency; not only that, the seam at the exit of the legs is made in such a way as to ensure greater comfort during the change (in fact it curves inwards by itself). They dress Slim and are one size fits all (thanks to the practical front snaps they can be easily adapted to your child's build). The elastic bands around the thighs work well against any leaks, without marking the skin. You can use a washable or disposable diaper to make it easier to change, making sure it doesn't protrude from the diaper. Inside they have a practical pocket in which further inserts can be inserted, in case it is necessary to increase the absorbency (not included). A long insert is already sewn onto this model. Size: one size fits all and adjustable thanks to the row of snaps according to the child's build (from 3.5 to 15 kg). Materials: Organic cotton terry: 100% organic cotton (GOTS) Internal absorbent core: 100% organic cotton (GOTS) External waterproof membrane: PUL (polyurethane coated polyester) Washing: can be machine washed at 40°C; it is advisable to use an ecological detergent; do not use: bleach, optical brighteners, fabric softener.