Protect junior from the great burning orb in the sky

When junior's cheeks are starting to look a bit red, throw the Outdoor Research Helios Sun Hat on, tighten down the chin-strap, and start slathering the sun screen all over any exposed skin. This hat features Solar Shield fabric that offers UPF 30-rated sun-protection. The foam-stiffened brim will float in case the Helios goes for an un-planned swim, and the TransAction headband wicks moisture away from junior's head.

  • Reviews
  • Q & A

Love it!

  • Familiarity: I gave it as a gift but have feedback to share
  • Fit: True to size

I bought this hat as a gift for my friend's twins. It fit the perfectly, and the quality is the same as the adult hats. It's awesome!

Good quality

  • Familiarity: I gave it as a gift but have feedback to share

Bought these for my niece and nephew and they love them. They haven't really had much of a chance to use them as it is still winter/early spring conditions here, however, I personally own several other pieces of OR gear and quality wise OR is awesome.

These fit true to size and the colors match what is in the picture.

Thank you for the great review, Nick! So glad they love them!

OR Rep

San Destin feel goods.

My niece and nephew never took these off. They offered protection all day and each size fit's true in the several I've purchased.

San Destin feel goods.

Helios for the win.

  • Familiarity: I've put it through the wringer
  • Fit: Runs large

I've gotten three of these so far! One for my nephew (review below), Mulberry (medium at 6 years old) for my niece and now one for my son. They are so comfy, soft liner, repels water so well. They fold without being damaged. It's my go-to hat for myself! I have the Helios and they are great coverage for that sun when you are camping and fishing and you just want to keep that heat off your face, neck and ears. Has a durable adjustable cord and he thinks it's pretty cool to be able to cinch it above his head.

We've used it several times. He has had his hat since he was four and is now five years old with a good head of hair and the Medium still fits great. Doesn't bother him either, forgets he has it on.

Helios for the win.


  • Familiarity: I gave it as a gift but have feedback to share
  • Fit: Runs large

This was disappointingly too large on my Nephew. I got a Large (Age:6-12) for my 10 year old nephew. He loved it either way. The hat itself is awesome and I'm glad he has some time to grow into it. He might be a little petite. Haha


Outdoor Research Sun Hat

  • Familiarity: I've put it through the wringer

We got the size medium for our 3 year old. We do have to cinch it a little. But that is the great thing about this hat - it cinches at the top to fit a variety of head sizes. Since it is adjustable, I know it will last us several years. She has gotten it wet in the pool and it still looks good as new. Highly recommended.

I am an adult but have a very small head....

I am an adult but have a very small head. I wear kids baseball hats. Not sure how small these run.

Best Answer

Size Chart! Click on the size chart right below the "select options" drop down menu. There you can find the measurements for all adults and kid sizes. Then, all you'll need is a string and a ruler!

Outdoor Research Sun Protection Products

If you're not careful, long days outside hiking, paddling or climbing can leave your skin damaged and burned. To keep you protected from damaging ultraviolet rays, Outdoor Research offers a full line of sun hats, and UV Protective shirts and pants designed to keep you protected from the sun.

Great hat -- even there's some wind

    I got this hat and one other for my 2.5-year old boy for our trip to Oahu in December. The hat was great - gave his face and neck a decent protection and stated on even when the wind picked up on the windward beaches.

    Unanswered Question

    How wide is the brim? Is the diablo color...

    How wide is the brim? Is the diablo color more on the orange side than red?

    Helios Sun Hat


      Our little guy needed a new sun hat for a last minute trip, but we found our old stand-by (Patagonia beach bucket) was out of stock everywhere. So glad now that we branched out and gave this one a try -- what a great kids' hat! The materials are soft and breathable, and the brim is light, but doesn't get floppy. I didn't notice in the description whether it tightened around the head, but it does in fact have a great cinch strap. Stayed put in beach winds without fail.