Gerber Baby Boy Onesies Multi-Sports - 5 Pack - Newborn. Gerber onesies model one piece underwear maintain child's little tummy coated all day lengthy. Supreme as a layering piece at evening to maintain child cozy and heat. Designed to coordinate with all Gerber necessities to create the right outfit. A must have important in each child's wardrobe. Fabricated from 100% cotton rib for consolation and softness.