Durable & Impact-Resistant MaterialWith tough and durable PVC & PC, EPS foam, it absorbs the impact and protects your head in the event of a crash. Breathable & LightweightWith 18 vents, the bike helmet ladies air through and stays cool. The breathable lightweight material is comfortable to wear. Adjustable Head Circumference & Quick ReleaseAdult bike helmets can be applied to different head sizes. Both the head circumference and the side straps are adjustable. This bike helmet fits both men and women head circumferences of 22.83-24.01 inch58-61cm. The quick release buckle makes it much easier to put on and take off the helmet. Detachable Sun Visor & LinerWith detachable sun visor you can protect your eyes from the sun, rain and mud. You can remove it if you don't need it. The inner padding can absorb sweat on the head and contributes to ideal comfort. The pads are removable. You can take them off the padding to wash to ensure your next clean and cool ride. Wide ApplicationSuitable for riding, climbing, skiing, inline skating, skateboarding, etc. Our bike helmet is a good choice for She. They are comfortable and safe.