Key benefits Reduces sun glare and helps protect your eyes so you can ride with clearer vision and less distraction. Keeps your head cool and comfortable in summer with a breathable, lightweight design. Fits comfortably under helmets to control sweat and prevent messy hair after removing a helmet. Features and performance Builtin eye protection: lowprofile visor/eye shield reduces direct sunlight and glare without obstructing sight. Breathable, thin fabric that minimizes heat buildup while riding. Soft, removable inner lining: comfortable against the skin and easy to wash for hygiene and odor control. Adjustable elastic fixing strap provides a secure, adaptable fit for most head circumferences. Ultralightweight: the cap weighs only 28 g, so it adds no noticeable burden when worn alone or under a helmet. Helmetcompatible: designed to be worn under motorcycle or bicycle helmets as a liner for sun protection and sweat management. Fit and care Onesize practical design: elastic strap and flexible fabric accommodate a wide range of head sizes. Inner lining can be removed and machine or handwashed; follow gentle washing to preserve shape and elasticity. Typical uses Road cycling: wear the cap to reduce sun glare, keep sweat out of your eyes, and stay cool on long rides. Motorcycle helmet liner: use under a helmet to absorb sweat, protect the scalp from direct sun, and reduce helmet hair after rides. Daily commuting and casual rides: lightweight protection for short trips, errands, or urban cycling when you want sun control without bulk. What it solves Minimizes sun glare that affects visibility. Prevents uncomfortable heat and stickiness from nonbreathable caps. Stops sweat from running into eyes and keeps hair neater after helmet use. Provides a lightweight, helmetfriendly option that fits most riders. Materials and weight Thin, breathable outer fabric with a soft inner lining. Total weight approximately 28 g. Compatible with most bicycle and motorcycle helmets; ideal for summer riding and everyday use.