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    Coolibar FAQ

    • What is Broad Spectrum

    • What is SPF

    • What is UPF

    • What are UVA rays and UVB rays?

    • Is there a big difference with UPF 50+ and UPF 30

    • Why is Coolibar more expensive than other brands

    • How does your fabric block UV rays?

    • Explain your Coolibar UPF 50+ guarantee?

    • What is UV testing and why does it matter?

    • Does Coolibar UPF 50+ protection ever wash out?

    • Are there do's and don'ts with Coolibar fabrics?

    • What does the "+" stand for in UPF 50+?

    • I heard that long sleeves can keep you cooler?

    • It feels like I may have sunburned through my Coolibar shirt, what do I do?

    • Do I need sunscreen if I'm wearing Coolibar?

    • I'm young and healthy, do I really need sun protection?

    • Isn't my tee-shirt at the beach enough?

    • What's the difference between the new mineral sunblocks and chemical sunscreens?

    • How much sunscreen should I use?

    • Why do my lips get chapped and burned?

    • Do you really need sunscreen or UPF 50+ clothing if you have dark skin?

    • Can sunscreen expire?

    • Do I need sunscreen on my face if I bought a hat?

    • How does Coolibar sizing run? How do your clothes fit?

    • How do I choose a hat?

    • I still love a tan, so are tanning beds better than the sun?

    • Do I really need sun protection in the fall and winter?

    • Don't I need some sun for Vitamin D?

    • Is getting a base tan before vacation safe?

    • Is tanning really dangerous?

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    © 2018-2025 Coolibar Sun Protective Clothing

    Coolibar is the world leader in UPF 50+ fabric technology.


    For more than 20 years, Coolibar has been innovating UPF (ultraviolet protection factor) 50+ fabrics and UPF clothing guaranteed to block 98% of UVA/UVB rays, providing UPF 50+ sun protection clothing you to wear. As a result, Coolibar was the first clothing company to receive The Skin Cancer Foundation's Seal of Recommendation.

    Our research, experience, and dedication to the science of sun protection clothing, UV performance fabrics and styles are the basis for all our products. Our UPF sun protective clothing, sun hats, and sun protective swimwear provide the highest UV protection available to keep you cool, comfortable, sun safe and looking good. It's like effortless sunscreen you wear.

    Rigorously tested and recommended by dermatologists worldwide - Coolibar guarantees UPF 50+ protection for the life of the garment as set by ASTM/AATCC standards. Coolibar tests every fabric in every color and every pattern against multiple standards before we ever stitch a garment. We measure all fabric performance against the Australian New Zealand UPF testing standards, the world's highest rating standard, as well as U.S. standards. Coolibar's level of sun protection exceeds all published rating standards of UPF 50, yet because the industry standard for certification stops at UPF 50, we indicate that we go above and beyond by using the "+" symbol.

    Summer weight fabrics let through an astonishing amount of the sun's damaging ultraviolet rays; they usually protect less well than an SPF (sun protection factor) 30 sunscreen. For maximum UV protection and skin coverage, we recommend UV Rash Guards, UPF Swim Tights, UPF clothing and UPF 50+ sun hats, the perfect UV light shield from the suns rays.

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