Gap FactoryGapBanana Republic Factory
Free shipping on $50+ for rewards membersSign in or join
Free shipping on $50+ for rewards membersSign in or join
Gap Factory logoGap Factory logo
  • New
  • Women
  • Men
  • Girls
  • Boys
  • Toddler
  • Baby
  • Deals & Clearance
Baby (0-24m) / One-pieces / Short Sleeve

One-Pieces

0 of 0 items
Related items
  • Doorbusters from $5
  • Baby Girl Sale: 50-70% Off
  • Baby Girl Clearance: Extra 50% Off
  • Baby Boy Sale: 50-70% Off
  • Baby Boy Clearance: Extra 50% Off
  • Baby Girl
  • Baby Boy
  • Baby Girl New Arrivals
  • Baby Boy New Arrivals
  • Red, White & Blue
  • Birthday Shop
  • Sunny Vacation Shop
  • Shop All Styles
  • Newborn Essentials
  • One-Pieces
  • Bodysuits & Tops
  • Sweaters
  • Coats & Jackets
  • Dresses & Rompers
  • Sweatshirts & Sweatpants
  • Pants & Leggings
  • Jeans
  • Shorts & Skirts
  • Pajamas
  • Swimwear
  • Matching Sets
  • Multi-Packs & Outfit Sets
  • Accessories & Socks
  • Shop All Styles
  • Newborn Essentials
  • Bodysuits & T-Shirts
  • Shirts & Polos
  • Sweaters
  • Coats & Jackets
  • Sweatshirts & Sweatpants
  • Pants
  • Jeans
  • Shorts
  • Pajamas
  • Swimwear
  • Matching Sets
  • Multi-Packs & Outfit Sets
  • Accessories & Socks
  • Logo Shop
  • Family Matching
  • Disney Shop
  • Character Shop
    Deals
      Doorbusters from $5
      Baby Girl Sale: 50-70% Off
      Baby Girl Clearance: Extra 50% Off
      Baby Boy Sale: 50-70% Off
      Baby Boy Clearance: Extra 50% Off
Skip to top navigationSkip to shopping bagSkip to main contentSkip to product filtersSkip to footer links

Baby Boy Essential One-Pieces


Shop Gap Factory for the baby boy one-pieces that will be a staple in his wardrobe. Stock-up on the easy head-to-toe outfits he’ll wear every single day. Pro tip: always have a clean baby onesie on hand. One in the drawer and one in the diaper bag as a backup. Featuring snaps at the inseam for easy dressing and diapering. Our baby one-piece outfits are made for every season. Sherpa half-zips are a cozy winter favorite that will keep him bundled-up on the coldest days. Our baby boy rompers are light and easy, with short sleeves to keep him cool (and adorable) all summer long. These one-step outfits are a parent’s dream and make changing baby a breeze. Got a baby shower coming up? You just found the perfect gift.



Baby boy one-pieces are made to dress up or down, with styles he can wear day or night. Our logo hoodie one-pieces feature the cutest ear appliques on the hood for your little bear. Our gauze one-pieces are lightweight and airy, perfect for summer baby photos you’ll want to share with all your family and friends. Our waffle-knit one-pieces are 100% comfy as he drifts off to sleep. Shop Gap Factory and save on the cutest baby boy one-pieces for his first year.