Quick benefits Keeps you cool and dry: breathable mesh fabric and ventilated crown/sides wick sweat and dry quickly so you stay comfortable during long rides or hotweather activities. Fits securely under helmets: lowprofile design and adjustable 52–58 cm circumference hold the hat in place during intense movement. Sun protection without bulk: wide brim shades face and eyes while the 30 g lightweight construction avoids added heat or weight. Built to last: reinforced stitching for reliable performance during frequent outdoor use. Key features Material: breathable mesh fabric for fast moisture evaporation and continuous airflow. Weight: approximately 30 g — light enough for allday wear and easy packing. Size/fit: adjustable circumference fits most adults (52–58 cm) for a stable, comfortable fit. Ventilation: mesh panels across the crown and sides prevent overheating. Helmet compatibility: designed to sit comfortably under cycling helmets and stay secure during movement. Durability: longlasting stitching suitable for cycling, climbing, and other outdoor sports. Colors: available in 6 distinct colors to match your gear and style. How this hat solves common problems Stops sweat from running into your eyes: quickdrying mesh pulls moisture away and dries faster than cotton. Reduces helmet discomfort: the slim, breathable design prevents trapped heat and bulk beneath helmets. Protects from sun exposure: the wide brim provides shade for the face and eyes during prolonged outdoor activity. Reliable in active use: secure fit and reinforced seams mean the hat won't slip or wear out quickly during movement. Practical use scenarios Cycling: Worn under a road or commuter helmet to manage sweat, reduce heat buildup, and keep the brim shaded without affecting fit. Hiking and climbing: Lightweight ventilation and sun protection for long hikes, alpine approaches, or scrambling where breathability matters. Beach and travel: Quickdrying fabric and compact 30 g design make it ideal for beach days, sightseeing, or packing for warmweather trips. Outdoor photography or fieldwork: Keeps you cool and shaded while staying securely in place during active shooting or survey work. What to expect Easy to adjust and comfortable for most adult head sizes (52–58 cm). Low weight and ventilated construction for effective cooling in warm conditions. Durable stitching for repeated outdoor use across activities like cycling, hiking, climbing, and photography. Size and care tips Adjust inner circumference for a snug fit under helmets or for standalone wear. Rinse or hand wash with mild detergent and air dry to preserve mesh performance and shape.