Product descriptions Material: 79% nylon + 21% elastane / 92% polyester + 8% elastane Lining: 88% polyester + 12% elastane Weight: approx. 33 g Suitable for head circumference: approx. 54–61 cm Warm & elastic material: The ROCKBROS cycling cap is made from an elastic material blend with a soft fleece lining. The material fits comfortably on the head and offers a balanced combination of thermal insulation and flexibility – suitable for head sizes of approx. 54–61 cm. Breathable & moisture-wicking: The functional fabric helps wick away sweat during sporting activities. The fleece-like interior is breathable and helps maintain a comfortable fit – even during longer rides or outdoor activities. Practical details for everyday use: The extended ear sections provide better protection from the wind, and the side openings allow glasses to be worn comfortably. The temples can be securely inserted into the slots provided, which reduces slipping. Ideal as an under-helmet hat: Thanks to its thin, close-fitting shape, the hat can be worn comfortably under a bicycle helmet. It is also suitable for use on its own and can be worn for many outdoor activities. Reflective elements for greater visibility: The hat has reflective details that contribute to better visibility in the dark or in poor lighting conditions, thus increasing safety when cycling.