Outdoor Research Helios Sun Hat
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With a broad 2.75 in. brim and UPF 50+ fabric, the Outdoor Research Helios sun hat offers an oasis of shade on your bright, sunny adventures.
Shop similar products- Nylon/polyester fabric is water resistant, breathable, quick drying and lightweight; offers UPF 50+ protection against harmful UV rays
- TransAction™ headband wicks away excess moisture, helping skin stay dry, cool and comfortable
- Foam-stiffened brim floats in water
- Dark fabric under the brim helps reduce glare to your eyes
- Includes a removable chin cord; cord adjusts with 1 hand to keep the hat snug on your head when the wind picks up
- Packable
Imported.
View all Outdoor Research Men's Sun HatsBest Use | Hiking |
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Hat Style | Sun Hat |
Fabric | Shell: 89% nylon/11% polyester; underbrim: 60% recycled nylon/40% nylon (bluesign® approved) |
Sun-Protective Fabric | Yes |
UPF Rating | 50 |
Moisture Wicking | Yes |
Quick Drying | Yes |
Visor/Brim | Yes |
Width of Brim | 2.75 inches |
Gender | Unisex |
Sustainability | Contains materials that meet the bluesign® criteria |
S | M | L | XL | S/M | L/XL | One Size | |
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Head Circumference | 21.5 - 21.75 | 21.75 - 22.5 | 22.5 - 23.25 | 23.25 - 24 | 21 - 22.5 | 22.5 - 24 | 21 - 24 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated.
Measure around your head where the headwear would fit comfortably.
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Customer Images
Favorite piece of hot weather gear.
It looks good, it does everything you need and nothing you don't need. I love the way this hat looks and fits. I have a pretty small head and it has quick easy adjustments. The adjustments are so good that I ride to the beach and back home on my motorcycle without this thing flying off. When I get to the beach and ready to fish I can loosen it in less than a second. It's sun gear so the most important thing is the protection. it's still spring here in Florida but it's already up to 80s on a regular and the day in the photograph was exactly that. The hat works great for blocking the sun and it also does a pretty good job keeping you cool. The brim is stiff enough to stay out flat for coverage but soft enough to still look good. Used it all last summer and heading into this year i'm relying on it again. Caught my first pompano of the year and the photograph came out great so I figured i'd actually write a review.

Great hat, just doesn't fit my head perfectly
I use this on the range at work during the summer time. It does an excelling job keeping the sun off me while remaining cool and light weight. My only complaint is the fitment (which is probably just due to the shape of my caveman head). The band is a good size, just a little snugging and the hat isn't going anywhere with what I am wearing it for, but its a little tall (not sure if that is the right term) and the brim sits a little low on my head. It's nothing uncomfortable, just have to adjust it up now and again. A smaller size may fix this, so I would recommend ordering one at or maybe even a little smaller than your normal hat size.

Great Hat - only 1 real issue
Love this hat. This is my daily go-to except for bad rain, when I use the Seattle Sombrero. Brim is wide enough to give decent face and neck sun protection, but light enough to wear all day long. The brim is semi-formable and doesn't flop much at all. The only real issue with the hat is sizing. You really need to try them on, aa even in same sizing, head circumference varies a lot and is not consistent. Also varies significantly based on color. Easy to do if you buy it in-person, but I wouldn't buy online unless you're okay with possibly going through a return/exchange process. Would gladly buy again and likely will if I ever lose this one.
Tip O'the Hat to OR!!
Best sunshade hat on the market by far. Light-weight and easy to pack and fold, this hat is essential for my life in the sun. As a soon to be super model for OR, I keep my vintage complexion in catalog form with this hat. Seriously, it punches the sun away from your face, nose and ears and keeps you cool and lets your nugget breath better than any other hat out there. Quick drying too should you want to use it as a swamp cooler for your head. Again, lost my original to a high-speed extraction from Iraq, and immediately repurchased a new one after I got back home to the calm sunny serenity of New Mexico. You will love this hat, so go for it.
Everything I hoped for!
I was given this as a gift after having skin cancer removed from my face. I needed a good hat for sun protection. This hat was everything we had hoped for. It is much cooler than other hats I own including a wide-brimmed straw Panama hat, an Army 'Boonie' hat and a cotton floppy. It maintains its shape when traveling, cleans up easily and is a bit more stylish that my other options. I also like the drawstring that allows for adjustment to tighten it up in windy weather or loosen it up when the temperature is over 100. I wish I had saved my self the money on those other hats and purchased this one sooner.
It survived 2 years in West Africa!
Living in West Africa, it was either humid and hot or dry and hotter. The Helios sun hat was literally a life saver - or at least a scalp and ear saver! My pewter hat faded to a very light grey under the constant sun. Near the end of my time there the fabric started to feel a bit brittle or crusty, but it was worn every day, soaked in sweat, soaked by rain storms and snatched off my head by the pet monkey. I ordered another once I got home. It (and a spare) will go with me on the next trip, guaranteed. The hat was comfortable, durable and protected my head from sunburn. Exactly what I wanted it to do.
fun hat
fits great, i look great in it, my girlfriend looks great in it, keeps the sun off and fits well

My favorite brimmed hat
Modern styling looks good. The XL is large enough to fit my big head. It's not bulky and packs very well. Wrinkles disappear quickly when taking it out of a pack. The brim is wide enough to totally protect neck, ears and shoulders from sun and light rain with a shirt or rain coat on. Repels dirt and sweat dries quickly but washes very well when needed. Comes with a strap for windy days. I'm on my second hat but my first one still looks brand new (and I've had it for years). On a side note, bravo to OR shipping department. My hat shipped in a STURDY cardboard box. I wish more companies did that.
Brim won't lay flat...looks ridiculous
I like the weight of this hat and I bought one for my husband and one for me. His hat looks fine on him and the brim lies flat, but no matter what I attempt on my hat, (blocking, bending, stretching), I can't get the brim to lie flat and the hat just looks ridiculous. I think there is something wrong with the way my Helios was made. I plan to return it and get another one.
No
This hat is very well made. Fantastic! In 2015 I bought a similar OR hat and loved it! Lost it. This OR hat is the closest in the online collection, but it is significantly different. The brim is a 3-4 centimeters smaller and cannot be shaped at all. The sweat band is white/beige and really stands out between the skull and the dark underside of the brim. With smaller dimensions and the pronounced white line under the brim it looks like a ridiculous beanie hat on me. I recognize that hats, like bathing suits, are highly individualized. The lesson I learned is never buy a hat online.