This ROCKBROS cooling helmet liner beanie is engineered with advanced ice silk fabric to deliver exceptional cooling performance during intense summer rides. The ultra-lightweight, moisture-wicking construction efficiently transfers heat away from your scalp while preventing sweat accumulation, with an ergonomic fit that integrates seamlessly under any cycling helmet.
Cooling Performance: Crafted with ice silk and breathable mesh for quick-drying, sweat-absorbing comfort during hot weather activities
Lightweight & Portable: Compact, thin design stores easily in pockets or bike bags for on-the-go convenience
Sun Protection: UPF 50 rating blocks more than 98% of harmful UVA and UVB rays
Versatile Use: Functions as a helmet liner for cycling, running, motorcycling, hiking, jogging, gym workouts, and other indoor and outdoor activities
Flexible Fit: Highly elastic material accommodates head circumferences from 50cm (20.47") to 64cm (25.19"), suitable for most men and women
Designed for cyclists and outdoor enthusiasts who need reliable temperature regulation and comfort without compromising helmet fit or ventilation during extended summer sessions.
