Moisture Wicking Sweat Beanie / Helmet liner/ Perfect for Running, Motorcycling,Biking, Football,Pack of 4 Moisture management technology wicks moisture away,this cap breathes well, and drys quickly, perfectly absorbs all sweat during sports activities Lightweight helmet liner,Easily fits under helmet,baseball cap,The breathable fabric of this head wrap can lose heat byevaporation,shield your head from sun coming through slots in your bicycle helmet This hat can be wear on the sensitive scalp of someone who had lost hair due to medical treatment.because it won't itch or scratch,Great head wrap for chemo patients This beanie stretches easily ,With adjustable straps,you can tie this bandana only as tight as you are comfortable with.It is suitable for men and women The pack includes 4 caps, Machine washable,wont shrink,The color stays put during washing and is quickly dry