ZOOCCHINIS ultra-absorbent One-Size Pocket Diaper is designed to provide a customizable fit for most babies from birth to potty training stage - approximately 7-35 lbs (3-16 kgs). An adjustable rise with 3 rows of snaps and multiple waist size adjustments ensure a flexible fit through the growing stages of your babys life. Our uniquely designed 2-piece diapering system - a waterproof exterior combined with one or two ultra-absorbent inserts - makes a dependable diaper for both day and night time use.