Running Hats & Headwear On

On Lightweight Cap


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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Reviews (8)

4.8 out of 5 stars.

4.8/5 on 8 total reviews

Nancy Verified Buyer
4 out of 5 stars.
Nice but…

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.

Deelo Verified Buyer
4 out of 5 stars.
Like this cap but would prefer a Velcro closure

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!

Ryan Verified Buyer
5 out of 5 stars.
On lightweight cap

The best running cap on the market hands down.

Jason Verified Buyer
5 out of 5 stars.
Great hat, worth every penny!

Great hat, worth every penny!

Samantha Verified Buyer
5 out of 5 stars.

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).

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