Product Details: Brand: ROCKBROS Suitable Temperature: 20–35°C (68–95°F) Weight: 13g Size: One Size Fits All Material: COOLMAX Fabric Features: Sun Protection, Breathable, Moisture-Wicking Features: COOLMAX Material: This ROCKBROS cycling cap is made from high-quality COOLMAX material, which offers excellent moisture-wicking properties while ensuring good ventilation. UPF50+ Sun Protection: With UPF50+ protection, this cap shields your skin from harmful sun rays and provides comfortable shade during your rides. Elastic Mesh Design: The elastic mesh design on the top of the cap enhances air circulation and heat dissipation to keep your head cool, even during intense cycling. Snug Fit: The cap fits snugly to your head, preventing sweat from running into your eyes and offering perfect sweat protection during your sports activities. Elastic Material: Thanks to its elastic material, this cap provides a comfortable and secure fit without pressure points. It can also be easily worn under a bicycle helmet to minimize friction between your head and the helmet. Compact and Practical: This cycling cap is compact and lightweight, easy to pack away, yet it delivers excellent protection and comfort on your bike tours.