PORTABLE

This beanie cap is thin and small enough to placed in your pockets or store on your bike bag conveniently for those moments where you need

UV400 PROTECTION

UPF50 protection mens skull cap can resist more than 98% of harmful UVA and UVB rays, effectively protecting your skin from sunburn in summer

REFLECTIVE LOGO

With reflective logo on the hat, increase visibility during night cycling, night running and other outdoor night activities

HIGH ELASTICITY

Our helmet liner is made of highly elastic material, easy to put on and take off, and fits most men and women

[COOLING HELMET LINER]: ROCKBROS Cycling Helmet Liner Cap is made of high-quality ice silk material and breathable mesh surface, which has nice quick drying and sweat absorbing performance, bringing you a comfortable wearing experience in hot summer.[LIGHTWEIGHT & PORTABLE]: This beanie cap is thin and small enough to placed in your pockets or store on your bike bag conveniently for those moments where you need.[SUN PROTECTION]: UPF 50 Cooling Skull Cap can resist more than 98% of harmful UVA and UVB rays, effectively protecting your skin from sunburn in summer[WIDE APPLICATION]: The cycling skull cap can be worn as a helmet liner or hard hat, it's also perfect for most indoor or outdoor activities such as cycling, running, workout, motorcycle,walking, hiking, jogging, gym, tennis, football and etc.[ONE SIZE FITS ALL]: Our helmet liner is made of highly elastic material, easy to put on and take off, suitable for head circumferences from 50cm/20.47" to 64cm/25.19", so it fits most men and women