100% cotton one piece is short sleeved with double-needle ribbed binding on neck, shoulders and leg opening. Reinforced three snap closure makes changing a breeze. This super soft one piece is offered in one size, small, which fits babies weighing 13-18 lbs. Of course, each one piece is appliqued with a cute little lamb design. This layette staple is what many babies wear 24/7 once they outgrow the gown stage - so stock up on this essential item.