How to choose your anti-UV swimsuits ?

A complete guide for choosing sun-safe, stylish, and high-performance UPF 50+ swimwear for the whole family

As the temperatures rise and summer holidays approach, time spent near the water becomes a welcome routine. But whether you're heading to the sea, a lake, or even a garden pool, one essential factor should guide your wardrobe decisions: protection from UV radiation.

UV rays, while invisible, are incredibly powerful and can damage the skin in as little as 15 minutes. Over time, this exposure contributes not only to sunburn but also to premature skin aging and an increased risk of skin cancer. That’s why anti-UV swimwear is a smart and stylish way to enjoy the sun safely.

In this article, we’ll explore how to choose the right UPF 50+ maillots de bain for both children and adults, based on factors such as material, coverage, fit, and functionality. Whether you're shopping for your baby, your teenager, or yourself, this guide will help you find a swimsuit that fits well, feels good, and offers the protection your skin deserves.

What is anti-UV swimwear and why is UPF 50+ important?

Anti-UV swimwear is made with fabrics that are specifically designed to block ultraviolet radiation from reaching your skin. These fabrics are tested and rated using the UPF (ultraviolet protection factor) system. A rating of UPF 50+ means the fabric allows less than 2 percent of UV rays to penetrate, providing the highest level of protection available in clothing.

Unlike sunscreen, which wears off with water and sweat, anti-UV clothing maintains its protective power as long as it stays on your body. It also reduces the need for reapplication, which is especially helpful for young children who don't sit still for long.

All the swimwear available on juilletjuillet.com is made from certified UPF 50+ fabric, chosen for its softness, durability, and comfort in the sun.

Choosing the right anti-UV swimwear for children

Protecting a child’s skin is more than a health decision, it’s also an act of care and responsibility. Children’s skin is more fragile and absorbs more UV radiation than adult skin, which is why full-coverage, anti-UV swimsuits are an essential part of their summer wardrobe.

When selecting swimwear for your baby or child, the first element to consider is fabric quality. A good UPF swimsuit should be labeled UPF 50+, indicating that the fabric has been tested to block out 98 percent of harmful rays. At Juillet Juillet, our baby and kids' swimwear collections are made from lightweight, stretchable materials that offer excellent sun protection without sacrificing comfort.

Coverage also plays a major role. Long-sleeved tops, high collars, and swim shorts that go down to the mid-thigh all add to the level of protection. These designs are particularly useful for long days at the beach or pool, when children tend to spend hours in and out of the water. And the more skin is covered, the less sunscreen you need to apply (and reapply).

Fit is another factor parents shouldn’t overlook. A swimsuit that’s too tight can restrict movement and lose elasticity over time, while one that’s too loose won’t stay in place during play. Look for a snug but flexible fit that stays put without compressing.

And let’s not forget design. Children are more likely to wear and love their swimsuit when the colors and prints reflect their personality. That’s why we offer joyful, punchy patterns that make getting dressed for the beach a moment of excitement, not negotiation.

You’ll find our signature long-sleeved baby swimwear is particularly appreciated by parents looking for easy-on styles that combine function, sun protection, and charm.

Choosing the right anti-UV swimwear for adults

For adults, the criteria remain similar, protection, fit, and comfort, but style and versatility also come into play. A well-designed UPF swimsuit can easily transition from a swim to a lunch by the beach, or even a stroll through a coastal town.

Start with the fabric. The best anti-UV swimsuits for women are made from high-quality blends of nylon, elastane, or recycled polyester, tested to meet UPF 50+ standards. These materials feel soft against the skin while maintaining their structure through salt, chlorine, and sun.

Coverage is key, especially for areas most prone to burns: shoulders, chest, and back. That’s why our long sleeve swimsuits for women are a favorite among customers who want both elegance and serious sun protection.

Fit should never be an afterthought. You deserve a swimsuit that supports you where needed and flatters your silhouette. Whether you prefer a high-waisted bottom, or a one-piece , the ideal swimsuit is one that gives you confidence. At Juillet Juillet, our bikini tops are designed with a flattering cut and secure feel, so you can move freely and comfortably.

Caring for your anti-UV swimsuit to preserve its protection

Once you’ve chosen your UPF 50+ swimwear, it’s important to maintain it properly to preserve its effectiveness. Rinse your swimsuit in cold water after each use to remove salt, chlorine, and sunscreen residue. Avoid wringing it harshly or drying it under direct sun, which can weaken the fibers over time. Always follow the care instructions on the label.

Our swimsuits are designed to last season after season, but proper care makes all the difference. High-quality sun protection is an investment, and with a little attention, you’ll keep it looking beautiful and performing perfectly.

Additional tips for sun protection

Even the best anti-UV swimsuit works best when combined with other sun-safe habits. Here are a few simple but effective strategies to protect your skin all summer long:

Always apply a mineral, broad-spectrum sunscreen to exposed areas

Reapply sunscreen every two hours, especially after swimming

Wear a wide-brimmed hat and sunglasses with UV protection

Avoid direct sun exposure between 11 a.m. and 4 p.m.

Create shade when possible using a sun tent or umbrella

For a complete checklist of what to pack for your next outing, explore our detailed article on family beach day essentials.

Final thoughts

Choosing the right anti-UV swimwear isn’t just about fashion. It’s about creating a summer routine that feels joyful, comfortable, and safe for every member of the family. Whether you’re playing in the waves with your children, lounging with a book, or watching the sunset from the shoreline, your swimwear should support your lifestyle while protecting your skin.

At Juillet Juillet, we believe that sun protection can be beautiful, smart, and empowering. Every piece in our collection is made to offer more than just coverage, it’s made to give you peace of mind.

So next time you pack your beach bag, do it with intention. Choose a swimsuit that works as hard as you do to take care of the people you love.

Discover our anti-UV swimwear collections

Explore our complete range of UPF 50+ swimsuits for women, kids, and babies, and find the design that fits your style and sun-safety needs.