Best Running Hats: Ranked on Weight, Brim and a Real UPF Number

Buy the Ciele Athletics GOCap. It is Treeline Review's Best Overall, the only hat in their 2026 test rated Excellent for breathability, and the one that gets the basics right in combination: 56 g on the scale, a 2.5-inch brim, UPF 40+ across the front, sides and rear, and a rear strap so one size really does fit.

If you want a deeper brim and a hat you will also wear to the shops, the Patagonia Duckbill Trucker goes to 3 inches. If the sun is the actual problem - summer long runs, exposed roads, a midday half marathon - the Sunday Afternoons Solar Bucket is UPF 50+ with a brim that runs all the way round. If you want the lightest possible thing on your head on race day, the Brooks Lightweight Packable Hat is 18 g. And if you want to spend as little as possible, the Headsweats Performance Race Hat is $25.

The three numbers that matter

Running hats are sold on colorways and bought on habit, which is why so many runners own four and like none of them. Three published figures decide almost everything:

1. Brim depth. How much of your face is in shade, and whether rain runs off in front of your eyes or into them. The range here is 2 3/8 inches (Brooks) to 3 inches (Patagonia). That five-eighths of an inch is the difference between squinting and not.
2. UPF rating. A rated fabric blocks a stated fraction of UV. An unrated one may well block plenty - it just has not been tested and labelled. The Skin Cancer Foundation explains the rating; three of the six hats here carry one and three do not.
3. Weight. 18 g against 56 g is the difference between a hat you forget and a hat you register on a hot mile 10. Light is not automatically better, though: the 18 g hat is also the one with no adjustment.

Notice what is not on that list: moisture wicking. Every hat in this category is a synthetic that wicks. It is table stakes, not a differentiator, and treating it as a selling point is how you end up with four hats.

The six compared

The three hats whose makers publish a sun-protection rating, side by side first:

And the three that do not publish a UPF figure, where you are buying brim and fabric instead:

Those two tables are the honest shape of this category: the hats with the most published data are not automatically the best hats, but they are the only ones you can compare before buying. The Headsweats row is nearly empty and it is still the one we would hand a new runner on a $25 budget.

What a UPF rating actually means

UPF is to fabric what SPF is to sunscreen: a measured factor for how much ultraviolet gets through. A UPF 50+ fabric blocks the large majority of UV; a UPF 25 fabric blocks noticeably less. The Skin Cancer Foundation's guidance on sun-protective clothing is the plain-language version.

Three things worth knowing before you pay extra for a rating:

• A rating can be partial. Treeline Review notes that the Ciele GOCap is UPF 40+ on the front, sides and rear, and that the top panel is unrated. That is the panel directly above your scalp. It is still a good hat; it is just not a rated one everywhere.
• Unrated is not the same as unprotective. Patagonia's recycled nylon trucker front publishes no UPF number, and a 3-inch brim still shades more of your face than a rated 2 3/8-inch one. Geometry does a lot of the work.
• A hat is not sunscreen. The American Academy of Dermatology recommends broad-spectrum SPF 30 or higher on exposed skin, reapplied roughly every two hours. A cap shades your forehead and does nothing for your ears, neck or the backs of your arms - which is a point in the Solar Bucket's favor. Sunglasses are a separate job again: the American Academy of Ophthalmology notes that lens darkness and price do not indicate UV protection, and our running sunglasses roundup covers that.

Brim depth: 2 3/8 in vs 3 in

Published brim depths across these six run from 2 3/8 inches on the Brooks packable, through 2.5 inches on the Ciele GOCap and the HOKA Run Hat, to 3 inches on the Patagonia Duckbill Trucker and the Solar Bucket.

Deeper is better for shade and for rain, and worse for wind and for seeing the ground on technical footing. A 3-inch brim in a headwind becomes a small sail; a 2 3/8-inch brim does not. If you mostly run roads early or late, brim depth barely matters. If you run exposed roads in summer, it is the single most useful figure on this page. Our hot-weather shoe roundup makes the same argument about uppers.

One more structural point: a bucket brim goes all the way round. That is why the Solar Bucket is the pick for genuinely exposed routes and why nobody wears one for a 5K. RRCA's hot-weather guidance is about timing, pace and fluid long before it is about kit, and that order is right.

Weight: 18 g to 61 g

Treeline Review weighed every hat it reviewed. The spread is wide: 18 g for the Brooks packable, 28 g for the Janji AFO Hyperlight, 56 g for the Ciele GOCap, 61 g for the rnnr Distance Hat. For reference, a modern phone is roughly 200 g - so even the heaviest hat here is a small fraction of what most runners already carry.

Which is the point: weight is the least important of the three numbers. What light buys you is packability - the Brooks disappears into a shorts pocket when the sun goes behind cloud - and what it costs you here is adjustment. The 18 g Brooks has no strap and, per Treeline, runs small. The 56 g Ciele has a strap and a breathability rating. For most runners that trade is worth 38 grams.

Which hat for your routes

• You run roads, year round, and want one hat. Ciele GOCap. Rated fabric, a strap, the best breathability score in the test.
• Summer long runs on exposed roads. Sunday Afternoons Solar Bucket, for the ears and the neck, plus sunscreen per the AAD guidance above.
• You want one hat for running and for the rest of your life. Patagonia Duckbill Trucker. Deepest brim here and it does not look like race kit.
• Race day, and you hate feeling anything on your head. Brooks Lightweight Packable Hat, if your head is at the smaller end. Read the fit warning first.
• You just want a hat and $25 is the budget. Headsweats Performance Race Hat. It is the cheapest in the test's whole table.
• Dark mornings and evenings. A hat is the wrong tool - start with our running headlamp roundup, and see winter running gear for a warm hat rather than a sun one.

The hats we can't sell you

Two of Treeline Review's award winners are direct-to-consumer, and one of our picks is cheaper away from Amazon. We earn nothing saying so, which is exactly why it is worth saying.

• Janji AFO Hyperlight Cap. Treeline's Best Lightweight at 28 g, 88% recycled polyester with 12% elastane, a 2 3/8-inch brim and a rear bungee - but only UPF 25, the lowest rated figure in their test. Sold by Janji.
• rnnr Distance Hat. Treeline's Best Affordable at $40: 61 g, a 2.5-inch brim, UPF 40, and the only hat in their test sold in two actual head sizes (56 cm and 58 cm). Sold by rnnr.
• Brooks Lightweight Packable Hat. Ranked above, and we have deliberately not pointed its buy button at a single listing: the only title-verified Amazon listing we found on 2026-11-09 was the 2.0 version at $68.87 against a $35 list price. Buy it from Brooks or a running shop and keep the difference.

How to choose a running hat

1. Start with when you run. Midday summer miles need a brim and a rating. Dark winter mornings need neither, and a sun hat is the wrong purchase entirely.
2. Check the closure before the fabric. A rear strap or bungee turns "one size" into something that fits. The one hat here with no adjustment is also the one the test says runs small.
3. Treat brim depth as the real spec. 2 3/8 inches, 2.5 inches and 3 inches feel genuinely different in sun and in rain. It is the figure you will notice every run.
4. Buy the rating if you run exposed routes. UPF 50+ on the Brooks and the Solar Bucket, UPF 40+ on the Ciele. If none of your running is in open sun, do not pay for it.
5. Buy two cheap ones over one expensive one if you sweat heavily. A hat you wash after every run is a hat you need two of. This is the whole case for the $25 Headsweats.
6. Check the price away from Amazon. Running hats are a category where marketplace markups are common - we found one at nearly twice list. The buy buttons here show the current price, so compare it against the maker's own store.

Common mistakes

• Buying a hat for sun protection and skipping sunscreen. A cap shades a forehead. The AAD recommends broad-spectrum SPF 30 or higher on exposed skin, reapplied about every two hours, and your ears and neck are exposed skin.
• Assuming "UPF 50+" covers the whole hat. It may not. Treeline reports the Ciele GOCap's top panel as unrated even though the front, sides and rear are UPF 40+.
• Buying a one-size cap with no adjustment, unseen. This is the single most common running-hat regret, and it is why the Brooks packable sits fifth here rather than first.
• Paying for wicking. Every hat in this category wicks. It is not a reason to choose one.
• Wearing a summer cap for winter running. A UPF ripstop cap does nothing for cold ears. See winter running gear for the headband and merino-layer answer instead.