1. Snaps on the front of the diaper that adjust to fit small， medium and large sizes (approximately 6-30 pounds). 2. Bamboo charcoal inside to make baby stay drying. 3. Easy to use snap closure 4. Gentle elastic around the legs and waist provides super protection against leaks. 5. Diaper with double inner elastic gusset can be prevent leaks better. 6. Super absorbent Insert is made of 2 layers of microfiber 2 layer of bamboo charcoal . Bamboo Charcoal Feature: 1. Strong adsorptive attraction ，Disperse harmful odor. 2. Release aniono function ，Release nature far infrared ray. 3. Keep human body warm， conditioning treatment . 4. The function has the permanence.Diaper insert: super absorbent 4 layers Bamboo inserts( 2 layers Bamboo and 2 layers microfiber) size is 13.5 inches long， 5 inches wide The diaper fits baby weight 3 -13 kg ( 6-28 lbs)， it can adjust to S.M.L size. It's the one size for all diapers one diaper come with one Bamboo insert