If you're shopping for kids' swimwear and come across the term "UPF 50+," you're probably wondering: what does that actually mean? Is it the same as SPF? And why does it matter for a bathing suit?
Here's everything you need to know about UPF, how it protects your child's skin, and why it's an essential feature in modern swimwear for active kids.
What Is UPF?
UPF stands for Ultraviolet Protection Factor, and it's a rating system used to measure how much UV radiation (both UVA and UVB) a fabric allows to reach your skin. Unlike SPF, which is for products like sunscreen, UPF is used to rate clothing.
UPF 50+ Means Serious Sun Protection
A UPF rating of 50+ means that only 1/50th (or 2%) of UV rays can penetrate the fabric. That’s one of the highest levels of sun protection available in clothing. In comparison, a plain white cotton T-shirt might only offer a UPF of 5–10.
Why It Matters for Kids
Children's skin is more sensitive and vulnerable to sun damage. Whether they're building sandcastles, jumping into the pool, or running around at camp, they need sun protection that doesn’t wash off or wear out. UPF swimwear offers:
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Built-in protection that lasts all day
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No need to constantly reapply sunscreen under the suit
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Peace of mind for parents when kids are in the sun for extended periods
What to Look For in UPF Swimwear
Not all UPF clothing is created equal. Here’s what to keep in mind:
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Look for UPF 50+: This is the gold standard for maximum protection.
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Tight weave, quality fabric: Cheap, thin fabric won’t offer the same barrier.
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Coverage: Styles with long sleeves or higher necklines provide more protection.
Why Emerson Pearls Includes UPF in Every Suit
At Emerson Pearls, we design girls' swimwear with both style and safety in mind. Our UPF 50+ fabric protects skin during all-day play, from the beach to the pool to the backyard sprinkler.
Plus, our suits are designed to move with them, whether they are splashing, swimming or doing cannonballs; because confidence should never come with compromise.
Final Thoughts
Choosing swimwear with UPF protection isn’t just smart — it’s essential. With one in five Americans expected to develop skin cancer in their lifetime, starting early with sun safety can make a lifelong difference.
Next time you shop for swimwear, check the tag. That UPF label could be your child’s best defense against harmful rays.
Need a suit that’s both protective and playful? Check out our latest styles at emersonpearls.com.