On Running Hats & Headwear

On Lightweight Cap

 in style BLACK


From sun protection to running in the rain, the On Lightweight Cap has you covered.

On created the one-size-fits-all Lightweight Cap from tear-proof woven fabric for durability and added a soft sweat band to keep you dry and comfortable. You can also dial in the fit with the running hat’s clip-pull sizing.

Laser-cut ventilation holes near the temples give you excellent breathability and help keep the hat’s feathery weight. Plus, the material is quick drying, so you’re in good hands whether your pouring sweat or the sky is pouring rain.

Want more On? Check out all the On running shoes and apparel you need to keep going.

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Based on 8 Verified Reviews

Nice fit

Kipi 3 months ago Verified Purchase

Great for running. Stays on and keeps my head nice and dry.

Nice but…

Nancy 1 year ago Verified Purchase

Weight fit and color terrific but the clasp has been changed from the identical style. It is now a post and channel instead of the easy clip insert. I vote to bring back the easy clasp.

Like this cap but would prefer a Velcro closure

Deelo 3 years ago Verified Purchase

I would give this cap 5 stars if it closed with velcro for quicker and easier adjustment when the wind picks up/dies down. It'a a little annoying to have to stop and deal with the closure to tighten or loosen up. Also I have a pretty small head so fabric puckers/gathers in the back around the closure but that's common for me in one size fits all hats. Those things aside this hat looks stylish and feels wonderful and I hope to keep wearing it for a long time!

On lightweight cap

Ryan M 3 years ago Verified Purchase

The best running cap on the market hands down.


Samantha 3 years ago Verified Purchase

Keeps me cool during warm runs also keeps the sweat from dripping down my face. I'm a female fits pretty well too (sometimes gets tricky with one size hats).

great lightweight hat

Margaret 4 years ago Verified Purchase

Perfect fit and fabric for summer runs.

Works like a charm!

Alex 4 years ago Verified Purchase

I was looking for a lightweight hat that would be great for running. I've been loving wearing this one on my runs- it clips together in the back which makes it super easy to get on and off as a woman with a ponytail. I recommend it!

It keeps me cooler during

Darlene 4 years ago Verified Purchase

It keeps me cooler during the warm days.