Rashguard or Swimsuit? Kids' Swimwear for Sunny Days

Quick answer

Choose a rashguard for long, sunny water days when you want more skin covered and fewer sunscreen reapplications. Choose a standard swimsuit for short dips, indoor pools, or quick changes—or pair a rashguard with swim bottoms for the best of both.

Why coverage changes the decision

A rashguard covers the torso and upper arms, so it reduces the skin you need to manage with sunscreen and shade. That matters most on beach days, at outdoor pools, and during long stretches of play where reapplication is easy to forget.

A standard swimsuit exposes more skin, which can feel cooler and easier to move in, but it demands more consistent sunscreen use. Neither option replaces shade, hats, or timed breaks from the sun.

Fit and changing trade-offs

Rashguards should sit close to the body without restricting shoulders or arms. A looser fit can balloon in the water and ride up, so follow the brand's fit note rather than guessing. Swimsuits are more forgiving in fit but can still gap at the legs or straps if sized poorly.

Changing is another trade-off: a one-piece swimsuit is one garment to manage, while a rashguard adds a layer. For toddlers who dislike being changed in public, a rashguard that doubles as a top for the trip home can reduce fuss.

When to choose each

Pick a rashguard for beach holidays, outdoor swim lessons, and full days near water. Pick a swimsuit for indoor pools, short backyard dips, or when your child prefers minimal coverage. For many families, one rashguard plus one swimsuit covers the whole season.

If your child is between sizes or you want room to grow, check the product's own sizing note before ordering—especially for rashguards, where a close fit matters.

Decision rules for kids' swimwear

• Long outdoor sun days: Choose a rashguard when your child will be in and out of water for hours and you want more skin covered. Pair it with swim bottoms and a hat for a complete sun-day setup.
• Short or indoor dips: Choose a standard swimsuit when the session is brief, indoors, or your child prefers less coverage.
• Frequent changes: Choose a swimsuit if your child resists extra layers; choose a rashguard if you want a top that works for the trip home.
• Sizing check: Follow the product's fit note: for a close-fitting rashguard, order the usual size unless you specifically want an oversized fit.

Product facts to know

• Percy Floatie Rashguard: UPF50+ recycled polyester blend fabric with a classic fit. The fabric and fit make it a practical choice for long sun days, but the classic fit means you should size up only if you want an oversized look.

  

Who this guide is for

Best for

• Parents planning beach or outdoor pool days
• Families choosing between a rashguard and a swimsuit for toddlers

Not for

• Shoppers looking for a single universal swimsuit recommendation
• Parents who need medical sun-protection advice