Baby Boy Long Sleeve Bodysuits
93 styles
93 products
Baby Boy Long Sleeve Bodysuits
Long-sleeve bodysuits for baby boys, most from a 0–3 or 0–6 month size up to 18–24 months: a one-piece top that fastens between the legs, so it stays tucked in under trousers, overalls and sweaters. Many parents call it a onesie; in the UK it is usually called a long-sleeve vest. Choose multipacks for every day, sweatshirt and bubble styles for cooler days, and seasonal Halloween and Christmas prints. Closures differ by style, so check each listing.
FAQ
What is a long-sleeve bodysuit? A one-piece top with long sleeves that fastens between the legs, worn on its own or as a layer under trousers, overalls and sweaters. In the UK it is usually called a long-sleeve vest.
What sizes do these bodysuits come in? Most styles run from a 0–3 or 0–6 month size up to 18–24 months. Sizes are labeled by age (for example 0–3 months or 18–24 months), and each product page shows our general size guide with heights in cm, so you can check your baby's measured length before you choose.
What's the difference between a bodysuit and a romper? A bodysuit is a base layer that fastens between the legs and is often worn under other clothes; a romper is a complete outfit with its own shorts or long legs, so it can be worn on its own. Our guide to baby clothing types compares them side by side.
Looking for a one-piece outfit instead? Browse baby boy rompers, or see all baby boy clothes.
Not sure which size to pick? See the baby size chart by age, weight and height