Biondi Chlorine Resistant Ultra Sport Hat UPF 50+

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In stock

The World Leader in UPF 50+ Fabric Technology.

Rigorously tested,
highest rated
UPF 50+

UPF 50+ guaranteed
to block 98% of
UVA/UVB rays

UPF 50+ sun
protection that
never washes out


Sun hats should be rugged enough to last-and comfortable enough to wear all day. Our Biondi Chlorine Resistant Ultra Sport Hat is designed to stand up to pool and saltwater and keep you completely covered during all your waterfront activities.

  • UPF 50+
  • Packable
  • Extra-long fabric flap shields your neck and wraps around for lower face coverage
  • Hidden elastic draw cord on base of crown for a perfect fit
  • Adjustable hook and loop fastener for a custom fit
  • Aqua Classic™ fabric: Chlorine and saltwater resistant with 4-way stretch
  • Note: Due to limited visibility, the drape should not be worn closed while driving

Size & Fit

  • Approximate Circumference: 24 ½"
  • Protective 4 ¼" bill


Aqua Classic™ Fabric

This is where it all started! We set out to develop a superior UPF 50+ swim fabric that didn’t feel heavy or rubbery like scuba rash guards. The result is a technically elegant, sun-safe swim fabric that is chlorine and saltwater resistant with a modest 4-way stretch. It’s silky smooth on the inside with a figure-flattering matte surface on the exterior. Customers love our Aqua Classic because it’s lightweight, quick dry and comfortable.

100% Polyester

Recommended by The Skin Cancer Foundation

All Coolibar fabrics have been approved as an effective UV protectant for covered areas. Coolibar is the first clothing company to receive The Skin Cancer Foundation’s Seal of Recommendation.

Not Recommended For

active fitness, not moisture-wicking and may cause overheating

Care Instructions

Machine wash cold, tumble dry low

Adult Hats Size Chart

Due to the range of fabrics and styles, each hat fits slightly different. See individual hat circumferences in the Features section of the product page. Our One Size hats are designed to fit most.

How to determine your hat size:

Measure around your head, from the center of your forehead, keeping tape straight and parallel to the floor. Measure around fullest part.

Size guide
Rated 3 out of 5 by from An OK hat This hat is OK but I wish the front cover would be removable as it is in the way and looks weird when it is not closed up. The back part should be longer to cover the neck.
Date published: 2022-06-30
Rated 5 out of 5 by from Hat fits well and should pack easily Color is good too
Date published: 2022-06-26
Rated 5 out of 5 by from Biondi CR Ultra Sport Hat is great protection Excellent protection while mowing or doing other work outdoors that still keeps you cool. Minor quibble with the design of how the neck wrap hooks up, in that it is not that easy to adjust so peripheral vision is not too limited.
Date published: 2022-06-14
Rated 4 out of 5 by from Ultra sport hat I wear this hat anytime I step outside! It’s comfortable, flexible and easy to put the loop around your wrist when you don’t need to wear it while inside a store etc. I have it in white and navy. People stop and ask me all the time where I got it and I’m proud to say Coolibar!
Date published: 2021-10-30
Rated 5 out of 5 by from SPF 1000 Great quality. The design is well thought out and works perfectly
Date published: 2021-09-09
Rated 1 out of 5 by from Biondi CR ultra sport hat. I really wanted to like this hat. I purchased it for sun protection as recommended by my doctor to prevent discoloration to new skin following a severe steam burn to face and neck, requiring surgery and 18-24 months of careful sun protection. I planned to use the hat to work and play with kids in my yard, while leisure kayaking, and at outdoor Orlando theme parks. The design looks decent but is poorly executed for functionality. When you put it on at an angle where you can see out under the brim, there is a lot of extra fabric that bunches at the base of the hat in the back making the hat hotter than necessary to wear, especially if closing the front up and breathing inside it. The front closes with velcro which I knew before purchasing, but it snags the hat fabric really easily. The inner hat band is only a flimsy strip of stretch fabric with a narrow elastic adjustable band inside. I have a medium sized head for a woman. Even with the elastic snug, the hat has way too much movement that affects vision under the oversized brim. The hat provides nice sun coverage on the sides of the face (at eye height) with the fabric that wraps around the edges of the brim and across the face, but this affects vision as well, and cannot be secured or adjusted very well. The wire in the upper edge of the face covering only spans the center section like a face mask, but the face area is loose. So, no matter what I did to adjust, sunglasses or none, I could not see well with this hat on and closed across my face. Instead of this hat, I purchased (and liked) the Cyd Travel Beach Hat, a neck gaiter and attached it to my cotton face for the sun coverage I need that matches my activity level for outdoor work and play.
Date published: 2021-08-30
Rated 5 out of 5 by from Beautiful protection Beautiful, comfortable, light material. I like all staff that I bought on this website. And I bought more than 10 different sun protection items on this day. It is mean something…
Date published: 2021-08-26
Rated 5 out of 5 by from Perfect fit Good color, fits perfectly, adjustable head circumference. hope that it does not break. My previous blue one broke apart and I had to tight a knot. Maybe we can get extra elastic strings
Date published: 2021-08-20
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