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

These are well made and serve the purpose well. I lost my hair due to a medical condition and these protect my scalp from the sun as well as cool breezes. Wash well and hold their shape

My husband said it's the best he's found in years. It is breathable, light weight. It is stretchy enough but not loose. It feels good.

I bought this to put on my head at night so that I wouldn’t get “CPap Hair” any longer. It works fine, but it is a little small for my 7 3/4 head. Pops off a bit frequently. If it were a little larger or my head was smaller, it would be 5 stars.

Exactly as described... perfect fit and comfort. Fits perfectly just above the ear. Keeps me cool on warm and hot days. Keeps my hat from getting sweaty. I bought a third one!🦋

I've now bought two sets of these and like the fit and ventilation they provide. As a cyclist who is also bald, I find these to be great on the bike under my helmet to keep me cool while preventing my head from getting weird tan lines. The reason I dropped the stars down is that the orange color is awful. It's more of a watered down peach color rather than orange. I expected a different color than what I got and would not have bought it has I known this was the color.

Great, lightweight, wash well. Love these for under my bike helmet. When it's super bright out and I need to wear my bike hat under my helmet for the visor, I still wear this beanie under it because it's easier to wash and prolongs the life of the hat with the visor.

I bought these to wear at night under my Cpap head gear so that my hair didn’t stick up all day. It works like a charm! It’s not hot at all, and very soft. I forget that I even have it on in the morning. If you have a problem with Cpap hair, then this is what you need.

great fit durability comes to mind