Swim Long Sleeve Sun Guard - Jelly Magic

Swim Long Sleeve Sun Guard - Jelly Magic - View 3

Swim Long Sleeve Sun Guard - Jelly Magic - View 4

Swim Long Sleeve Sun Guard - Jelly Magic - View 5

Swim Long Sleeve Sun Guard - Jelly Magic - View 6

$42.78 ~~$69~~ In stock

Reveal an aquatic surprise with our water-activated fabric. When dry, black keeps its secrets hidden. But splash some water on it, and watch as gray jellies emerge.

How It Works

Our innovative color-changing technology responds to water contact. The moment moisture hits the fabric, the previously invisible jellyfish print transforms from black to gray. Once dry, the fabric returns to its sleek, all-black appearance—ready to surprise again and again.

Stay protected and stylish whether you're catching waves or lounging poolside with our Swim Long Sleeve Sun Guard. Inspired by the functionality of athletic gear, this versatile sun guard offers full coverage without sacrificing comfort. Made from eco-friendly, quick-drying fabric, it features a close-to-body fit similar to our Swim Tank, with just enough room to layer over your favorite swim tops or wear solo.

Sustainability note: We recycle 7 water bottles to make each sun guard

Close-to-body fit, perfect for layering or solo wear
UPF 50
Quick-dry, 4-way stretch for flexibility and comfort
Smooth, durable flatlock seams to prevent chafing
80% recycled polyester, 20% spandex
OEKO-TEX® Certified
Inclusive sizing from XS-6X

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Violet ★★★★★ Sep 6, 2026

My kids fought over who got to try it first—the gray jellyfish appearing out of nowhere on black fabric is pure magic. It dried surprisingly fast after our pool session, so no soggy car ride home.

Emma I. ★★★★★ Sep 2, 2026

The moment I dripped water on the sleeve, the gray jellyfish appeared almost instantly, which was way cooler than I expected. The long sleeves dried quickly after our pool session, and the black fabric stayed comfortable even in the sun.

Ryan ★★★★★ Sep 1, 2026

The water-activated pattern is such a fun trick—my daughter squealed when the gray jellies showed up after a quick splash. Fabric feels comfortable against the skin, and it held up fine through a whole afternoon of swimming.