Choosing the best swimsuit for a toddler usually comes down to three things: comfort, coverage, and convenience.
Should you choose a one-piece swimsuit? A two-piece rash guard set? Or separates that can be mixed and matched?
There is no single right answer. The best toddler swimwear depends on where your child is swimming, how active they are, and which style makes getting ready easiest for your family.
One-Piece Swimsuits: Simple and Secure
A one-piece swimsuit for toddlers is an easy option for active beach and pool days. With everything connected, there are fewer pieces to adjust while kids swim, splash, and play.
For outdoor swimming, a long-sleeve style also provides more coverage across the shoulders and arms. The American Academy of Dermatology recommends looking for clothing with a UPF rating when choosing sun-protective clothing and using sunscreen on skin that remains exposed.
Sunguard Swim’s Nola One-Piece Rashguard combines long sleeves, UPF 50+ fabric, a high neckline, quick-drying stretch fabric, and a front zipper for easier on and off.
A one-piece may be best for:
Beach days, active swimmers, outdoor pools, and parents who want one easy piece to pack.
Two-Piece Swimsuits: Easier Changes
A two-piece toddler swimsuit can make bathroom breaks and changing a little simpler since the top and bottom can be removed separately.
For families who still want long-sleeve coverage, a rash guard set offers the convenience of separates without switching to a traditional bikini-style swimsuit.
The Reese Two-Piece Rashguard Set, for example, pairs a long-sleeve UPF 50+ top with matching bottoms and includes a side zipper to make changing easier.
A two-piece may be best for:
Potty-training toddlers, swim lessons, travel, and kids who prefer separates.
Rash Guard + Swim Shorts: The Mix-and-Match Option
Another versatile option is pairing a separate kids’ rash guard with swim shorts or trunks.
This can be especially convenient for families with kids who need different sizes on top and bottom or who like to mix and match their swimwear.
The Kai UPF 50+ Rashguard Top comes in sizes starting at 6–12 months and features long sleeves, quick-drying stretch fabric, a high neckline, and a side zipper.
What to Look for in Toddler Swimwear
Whatever style you choose, look for:
- A snug but comfortable fit
- Soft, stretchy fabric
- Quick-drying materials
- Easy zippers or openings
- A UPF rating for outdoor swimming
- Enough freedom to swim, climb, and play comfortably
Sunguard swimsuits are designed to fit snugly when wet, with the brand recommending sizing up when a child is between sizes or prefers a roomier fit.
So, Is a One-Piece or Two-Piece Better for Toddlers?
It really depends on your routine.
Choose a one-piece if you want a simple, secure swimsuit for active play. Choose a two-piece rash guard set if quick bathroom breaks and changing are a priority. Or choose a rash guard and swim shorts if your child prefers easy mix-and-match separates.
The best swimsuit for toddlers is ultimately the one that fits comfortably, works for your family, and lets your little one enjoy more time in the water.
Explore Sunguard Swim’s UPF 50+ toddler and kids’ swimwear for your next beach day, pool visit, or family vacation.
