Description: - 【Premium Material】: This cycling helmet is made of quality PLASTIC foam and PC material, featuring a lightweight design overall. It provides great impact and shock protection, as well as great cushioning. - 【Ventilated & Comfortable Wear】: The bike helmet has a streamlined structure with multiple ventilation ports. Its breathable and comfortable inner lining can be removed for easy cleaning, keeping your head fresh and comfortable even after long hours of wear. - 【Product Dimensions】: The road cycling helmet for men and women is in M size, with head circumference 54cm-60cm/21.26inch-23.62inch, featuring adjustable straps and chin pads to ensure a proper fit for everyone. - 【Wide Application】: This bicycling helmet is ideal for various outdoor activities such as motorcycling, traveling, biking, cycling, skateboarding, riding, roller skating, skateboard, rock climbing, etc. - 【Great Gift】: This outdoor bicycle helmet is also a great gift choice for families and friends who are mountain road biker, outdoor lovers on birthdays, holidays, festivals, etc. Specification: - Material: PC PLASTIC Size Chart: M Size: Head Circumference: 54cm-60cm/21.26inch-23.62inch Package Includes: 1 Bike Helmet Note: Please allow slightly errors due to manual measurement and different monitors.