Adult Bike Helmets, Adjustable Mens Womens Bicycle Helmet, Lightweight Road Mountain Cycling Safety Sports Helmets with Detachable Visor

[IMPACT RESISTANCE] High-level warm fabrics washable liner and high-density foam cushioning layer to protect your head from potential injuries when cycling
[ADJUSTABLE FIT] Rotation buckle contraction and dial can adjust the buckle belt inside helmet overall to meet different head circumference rider and achieve comfortable fixation effect. Suitable for youth boy or girl M: 54-58cm / 21.2-22.8 inch, for adult men or women L: 58-62cm/22.8”-24.4”,.This cycling Helmet is universal for city commuters and cycling enthusiasts
[VENTILATION&COMFORTABLE] Streamlined shape and multiple air vents are designed to keep head cooling and breathable, perfect choice for age 14+ youth or unisex men women during long rides or other urban commuter bike riding