Comfortable And SafeMen's bike helmets are pleasant to wear, light, and can be adjusted to fit head circumferences between 54-61cm. These cycling half-helmets for all-season sun protection has a wide-angle design that prevents visual obstruction.Increase Cycling SafetyIt can relieve the impact force during a collision, increase safety and reduce the possibility of head injury during riding. The Bicycle helmets enhances the protection of your head while cycling.Humanized Inner DesignAdult bicycle helmets include a cool, breathable replaceable inner liner. As a result, we won't feel stuffy while wearing it, and it's practical for our regular cleaning.High-grade MaterialBike helmets is lined with mesh cotton and equipped with a buffer keel. It is made of high-quality ABS and sponge materials and has multiple layers of protection. So it is not only comfortable, but also very safe, a must for outdoor sports enthusiasts.Scope of ApplicationOur Bike helmets for men are perfect for men and women who are on a cycling trip. It is suitable for many outdoor sports such as cycling, skiing, baseball, skateboarding, etc.Specification:Material: ABSWeight: 600gProduct size: 29*23.5*16cm\11.41*9.25*6.3INAdjustable head range 54-61cm.packing list:1*Cycling HelmetsNote:1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting.2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.