Abstract: A one-piece infant undergarment having neck and arm openings, and a bottom opening backed by a prolonged bottom flap dimensioned to wrap around the infant's crotch and to join the front of the bottom opening. Opposing hook-and loop Velcro® strips are sewn onto the undergarment along the margins of the bottom flap and at the front of the bottom opening. When the bottom flap is wrapped around the infant's crotch, it can be conveniently joined to the front by the opposing hook-and loop strips and sealed closed by minimal pressure, thereby forming a releasable crotch cover that facilitates more convenient no-fuss changing.