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Sunday Afternoons
Ultra Adventure Hat

4.656387665198238 out of 5 stars
227 Reviews


Size Chart


Why We Like The Sunday Afternoons Ultra Adventure Hat

A lovely day outside can quickly be ruined with sunburn regret, which is why we count on the Ultra Adventure Hat to shield our face, ears, and neck from the harsh sun. This hat features robust built-in protection against UV rays, complete with a dark under brim to cut glare and mesh paneling to help keep our head cool and dry.


  • Feature-packed sun hat helps prevent sunburns during outdoor activity
  • Nylon construction with water-repellent finish is breathable and quick-drying
  • A moisture-wicking sweatband keeps sweat off of your face
  • UPF 50+ rating is the highest attainable for built-in UV protection
  • Reverse Split Brim design can be folded up for easy packing and storage
  • Temple sleeves for sunglasses prevent shades from falling off your head
  • An external, adjustable strap provides a custom and secure fit
  • Item #SDY001X
Responsible Collection
[material] bluesign® APPROVED
bluesign® APPROVED nylon, PFC-free DWR treatment
[reverse split brim] 3.25in [neck cape] 6in
sun hat
UPF Rating
Claimed Weight
Manufacturer Warranty
limited lifetime
hiking, backpacking, casual

Overall Rating

4.5 based on 227 ratings

Review Summary

1 Stars - 8 reviews
2 Stars - 4 reviews
3 Stars - 10 reviews
4 Stars - 14 reviews
5 Stars - 191 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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4 out of 5 stars

March 28, 2024

ponytail opening

I really wish it had a ponytail opening. I had to cut and sew myself. If you ever have that- it will be perfect!

k hereupon

Originally reviewed on

5 out of 5 stars

March 18, 2024

Nice Hat

It is a nice hat. Can't feel the sun at all. Good value.


Originally reviewed on

5 out of 5 stars

March 2, 2024

Great hat, stays on in the wind

I wore this hat for a month in sunny Costa Rica and love it. The folding brim packs beautifully, and the adjustable sizing and chin strap meant it stayed on securely even in very windy situations. I chose the pumice color because the underside of the front brim is darker and cuts the glare. Highly recommend this hat.


Originally reviewed on

5 out of 5 stars

February 11, 2024

I’ve walked 4000+ miles in the same hat — with many more to go =)


Originally reviewed on

5 out of 5 stars

January 25, 2024

Best design, execution and warranty on the market.

Having had a few skin cancers on my face I don't go outside when the sun is out unless I am wearing THIS hat. No other provides the coverage. The design is perfect. Well made, too. Years after I bought it I happened to visit their site because the sunshade (bill?) had become warped, probably due to bad travel packing and people throwing stuff on top of it, and I discovered the warranty is unparalleled. They sent me a new one for the very reasonable cost of shipping. I would never voluntarily buy a different hat or brand. Worth every penny.


Originally reviewed on

5 out of 5 stars

December 19, 2023

20 year replacement

My first purchase was 20 years ago...a testament to the quality of the product. Just want a second hat of a different color...


Originally reviewed on

5 out of 5 stars

December 8, 2023

Does the job!

Great hat. Does what it need to do, and is well made but lightweight. Great customer service as well.

Matt M

Originally reviewed on

5 out of 5 stars

November 27, 2023

Who knew a hat could make all the difference

Started the Colorado trail in a big box store brimmed hat by modifying the back with Velcro to keep it out of the way. After 200 miles of trying to figure out where to stash it without taking off my pack I found the adventure pro hat and OMG! A foldable brim hat that was SOooooo comfortable and stashed easily. The flap in the back was incredibly light and yet stayed put to keep the sun off. When not needed it stayed stashed up in the crown without ever creeping back down, even as I took it on and off. The super smooth and easy back adjustment to tighten and loosen the fit was an unexpected luxury as it only took one hand. Love it and have bought 5 as gifts.

Mountain Doe

Originally reviewed on

1 out of 5 stars

November 22, 2023

Inadequate Sun Protection...

An 'Ultra' adventure hat would keep the regular adventure hat brim-width and cape dimensions, and add a folding brim (excellent improvement, it makes it packable) as well as other features. (I have to wear my glasses all the time, so the sunglasses holder feature is useless to me.) This version has a narrower brim and cape and doesn't provide adequate sun protection. The adventure hat has great sun protection, but isn't easily packable (brim creases when rolled). Disappointed, I will be looking elsewhere for an effective sun hat.

user image

Originally reviewed on

5 out of 5 stars

September 24, 2023

Ultra adventure hat

Excellent hat! GreAt coverage and protection from the sun and light weight. I love it! 3 hat from Sunday Afternoons. Never been disappointed. By far this hat is the best!

Greg L

Originally reviewed on