MELASASkull Cap Helmet Liner Beanie, Cooling Mesh Cycling Running Hat for Men Women, Fits Under Helmets

I wear these under both, a baseball hat and a giant straw sun hat here in the desert. They do as advertised. It keeps the sweat from dripping and running into my eyes, keeps my hair back and slows down the sweat destruction of hats. It seems to be very stretchy and should fit most adult sized male craniums. For reference a L/XL flex fit hat fits great. How long all this holds up, time will tell but they seem pretty solid. I’ve tried a lot of different types of these dumb things and these are the best I’ve found. Will buy again unless they fall apart being hand washed.

It suits well in my work-life, and it keeps my sweat off my face. I like it!

I haven't had a chance to road test it for long trips yet, but works well under a helmet and seems to be decent product for the price. It will fit L/XL size heads

Was looking for a helmet liner for warmer weather. This fits the bill perfectly. Perfect fit, snug but not too tight. So far no complaints.

Excellent product and comfortable

I bought these to go over my hair to protect it from my cpap. They were too small and the fabric is super slippery. They look well made but didn't work for my purpose at all.

I wear a hardhat all day…this keeps my head cool and the sweat out of my eyes!

Super light and at the same time stays put, but doesn't feel tight.

Good quality, well priced - super comfortable under a helmet

Gorro de buena calidad, se siente cómodo, llego muy rápido.En general una buena compra

Great for keeping hair out of the way under a helmet. Nice and thin with real good quality. Very happy with them.

Adquirí esta gorra para usarla con el caso de la bicicleta y me ha funcionado bien. Se ajusta bien a la cabeza, mantiene cómoda la cabeza porque el cabello no se enreda en el casco. La relación precio calidad es buena. Lo recomiendo.

I'm bald so I wanted something thin to wear on my head under my biking helmet. It works. It's nice and comfortable. Better then wearing a hat under my helmet. The one issue that I have with this item is that it gets damp when you're sweat and doesn't dry off even when riding with a well ventilated biking helmet. You'll have to hang in up to dry off after every ride.