PLEASE BE ADVISED OF OUR DIAPER POLICY FOR CHILDREN 3.5 YRS AND YOUNGER. AGES 4 MOS TO 3 YEARS MUST WEAR A DOUBLE DIAPER- DISPOSABLE SWIM DIAPER WITH A REUSABLE SWIM DIAPER OVER THE TOP. AGES 3 YRS THRU 3.5 YRS MAY WEAR ONE SWIM DIAPER. THIS IS FOR THE SAFETY OF OUR SWIMMERS AND CLEANLINESS OF OUR POOL. GENERAL RULE IS THE DIAPER SHOULD FIT SNUG AROUND THE LEGS LEAVING ROOM FOR ONLY 1 FINGER TO FIT THROUGH THE SIDE.