UV Swim Shirt / Rash Vest

Sizes: 2-3 5-6 7-8 13-14

Max Half zip swim shirt S/S – olive

$ 49,35

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Sizes: 2-3 3-4 5-6 7-8 11-12

Max Half zip swim shirt S/S – sapphire

$ 49,35

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Sizes: 2-3 3-4 5-6 7-8 9-10 11-12 13-14

Raglan UV Swim shirt S/S – sapphire

$ 41,85

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Sizes: 1-2 2-3 3-4 5-6 9-10 11-12 13-14

Raglan UV Swim Shirt L/S – sapphire

$ 41,85

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Sizes: 3-4 5-6 7-8

Milou EDGE swim shirt S/S – white

$ 41,85

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Sizes: 2-3 7-8

Milou Swim Shirt S/S – sand fish

$ 41,85

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Sizes: 1-2 3-4 7-8

Sydney UV Swim shirt – sand fish

$ 49,35

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Sizes: 2-3 11-12

Sydney UV Swim shirt – parrot

$ 41,85

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Sizes: 2-3 3-4 5-6 7-8 9-10 11-12 13-14

BASIC Zipper shirt – blue

$ 49,35

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Sizes: 11-12

Hugo China collar – army

$ 44,85

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Sizes: 1-2 2-3 3-4 5-6 7-8 9-10

Raglan UV Swim shirt S/S – blue

$ 41,85

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Sizes: 1-2 2-3 7-8

Raglan UV Swim Shirt L/S – nectarine

$ 41,85

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Sizes: 1-2 2-3 5-6 9-10

Milou VITA Swim Shirt S/S – taupe

$ 41,85

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Sizes: 1-2 2-3 3-4 5-6 7-8 9-10 13-14

Raglan UV Swim shirt S/S – nectarine

$ 41,85

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Sizes: 1-2 2-3 3-4 5-6 7-8 9-10 13-14

Raglan UV Swim Shirt L/S – blue

$ 41,85

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Sale!

Sizes: 1-2 2-3 3-4 5-6 7-8

Casey VITA turtleneck – cornflower

Original price was: $ 49,35.Current price is: $ 34,35.

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Sizes: 0-1

Sydney UV Swim shirt – cornflower

$ 41,85

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Sizes: 2-3 3-4 5-6 11-12

Etoile Zipper UV-swim shirt L/S – cornflower

$ 49,35

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Sizes: 2-3 3-4 5-6 9-10

Salo Zipper UV-swim shirt S/S – cornflower

$ 49,35

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Sizes: 2-3 3-4 5-6 7-8 9-10 11-12 13-14

Salo Zipper UV-swim shirt S/S – blue

$ 49,35

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Sizes: 7-8 9-10 11-12 13-14

Max Half zip swim shirt S/S – taupe

$ 49,35

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Sizes: 1-2 2-3 3-4 5-6 7-8 11-12 13-14

Etoile Zipper UV-swim shirt L/S – taupe

$ 49,35

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Sizes: 13-14 11-12 9-10 7-8

Salo Zipper UV-swim shirt S/S – army

$ 49,35

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Sizes: 13-14 11-12 9-10 7-8 5-6 3-4 2-3 1-2

Max Half zip swim shirt S/S – army

$ 49,35

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Sale!

Sizes: 2-3

Ash Turtleneck S/S – azure

Original price was: $ 41,85.Current price is: $ 34,35.

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Sale!

Sizes: 2-3 1-2

Ash BOAT Turtleneck S/S – latte

Original price was: $ 41,85.Current price is: $ 28,35.

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Sale!

Sizes: 0-1 9-10

Sydney UV Swim shirt – sand-boat

Original price was: $ 41,85.Current price is: $ 25,35.

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Sizes: 1-2 2-3 9-10 11-12

Max Half zip swim shirt S/S – petrol

$ 49,35

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Sizes: 13-14 11-12

Max Half zip swim shirt S/S – sand-boat

$ 49,35

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Sale!

Sizes: 1-2

Hugo PALM China collar – nordic

Original price was: $ 44,85.Current price is: $ 29,85.

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UV swim shirts and rash guards for small crabs playing in the sand. Explore our large selection of sun protective T-shirts with short/long sleeves, swim shirts with zipper and shirts with a high neck. All swimwear from Petit Crabe is made with UPF 50+ protection, quick-drying and certified by Oeko-tex.

UV Swim Shirts for Boys – Sun Protection with Style

Let your little adventurer enjoy the sun safely with Petit Crabe’s collection of UV swim shirts for boys. Designed in Denmark, our range combines Scandinavian simplicity with reliable sun protection. Perfect for long days by the beach, in the pool, or on family holidays, our UPF swim shirts keep boys comfortable, covered, and ready for every splash and game.

Made for Active Days in the Sun

Petit Crabe’s UV shirts are designed with active children in mind. Every piece is made from premium Italian fabric with UPF 50+ protection — the highest standard available. That means more than 98% of the sun’s harmful UV rays are blocked, even when the shirt is wet.

Our UV swim shirts are soft, quick-drying, and lightweight, ensuring comfort through every swim, surf, and sandcastle. Unlike sunscreen, which fades or washes away, our UPF swim shirts provide consistent protection all day long.

Scandinavian Design, Built to Last

Petit Crabe’s designs are timeless and minimal — because we believe kids’ swimwear should be both practical and beautiful. Each UV swim shirt for boys features clean lines, subtle details, and colors inspired by nature: ocean blues, soft greys, sand tones, and fresh pastels.

The design pairs effortlessly with Petit Crabe’s matching swim shorts or hats for a coordinated look that feels both modern and classic. We skip the loud prints and cartoon motifs — instead, we focus on the simple, Scandinavian style that Petit Crabe is known for.

Comfort and Freedom to Move

Every Petit Crabe UV shirt is crafted to move with your child. The flexible, four-way stretch material ensures total freedom of movement — whether swimming, jumping, or running along the shore. The flat seams and soft texture prevent irritation, even after hours in the water.

The shirts are also resistant to chlorine and saltwater, maintaining their shape, softness, and UV protection over time. Because kids’ clothes should keep up with their adventures.

For the Whole Family

Petit Crabe makes UV protection easy for everyone in the family. Explore our full range to find matching pieces for all ages:

Discover our UV swim shirts for men — sleek and practical for active beach days.
Explore our UV shirts for women — elegant, comfortable, and made to flatter.
Match your little boy’s style with our girls’ UV swim shirts — same quality, same protection, just different details.
View our full UV swim shirt collection for coordinated looks for the whole family.

Why Choose UPF Swim Shirts for Boys?

Children’s skin is more sensitive to UV rays than adults’, making reliable protection essential. A UPF swim shirt provides all-day defense — without constant sunscreen reapplication or worry about exposure.

Petit Crabe’s UV swim shirts offer:

Maximum UPF 50+ protection — blocking 98% of UV rays.
Lightweight comfort — soft and breathable even in heat.
Quick-dry performance — perfect for in and out of the water.
Durability — holds color and shape, wash after wash.

Whether your child is at the pool, in the sea, or simply playing in the garden, our UV shirts ensure he stays safe while enjoying every sunny moment.

Responsible Craftsmanship

We take pride in creating swimwear that’s gentle on both skin and the planet. Petit Crabe’s UV swim shirts are made from high-quality, responsibly sourced materials designed to last season after season.

Our production focuses on durability and comfort — because sustainability starts with choosing well-made, long-lasting pieces. Every seam, stitch, and fiber is chosen for function and quality, ensuring that each shirt meets the high standards parents expect from Petit Crabe.

Everyday Protection, Timeless Design

Petit Crabe’s UV swim shirts for boys make sun protection simple and stylish. No fuss, no compromise — just Scandinavian design built for life outdoors.

Whether you’re heading for a day at the beach, a family vacation, or a poolside afternoon, our UPF swim shirts are made to keep your child comfortable, confident, and protected.

Explore the full collection and discover why families around the world trust Petit Crabe for their children’s summer essentials.