The new Easyfit V4 features the new "binky" fabric, this is made up of Bamboo, Minky & cotton. A Pop in booster comes as standard for increased absorbency. Fast drying. Integral waterproof outer means there is no need for a separate cover. Hook & loop fasteners enable quick and easy changes. Wrap-around stretch for ultimate comfort and fit. Super absorbent bamboo interior is so soft next to baby's skin. Fits from 8lbs to 35lbs.