HIGH PERFORMANCE QUALITY: Bike Helmet is carefully constructed with an all-in-one polycarbonate PC shell and high-density shock-absorbing EPS foam, giving it excellent shock absorption and drop resistance, effectively reducing impact forces and providing you with the most reliable safety. DESIGNED FOR MAXIMUM COMFORT: With a special aerodynamic design, 19 vents circulate air, keeping your head cool and dry in hot conditions. Plus, our bike helmets are ultra-lightweight to reduce stress on your head even when worn for extended periods of time. REMOVABLE INNER PAD : The wrap-around padding increases comfort and is easy to clean as it is removable, strengthening the internal structure and ensuring your head is fully wrapped in a secure and breathable condition. ADJUSTABLE AND FIT: Thanks to its adjustable dial system and side straps, the bike helmet can accommodate heads of all sizes, with a custom fit and fit for most teens and adults. Suggested head circumference: 58-61cm (please measure your head before purchasing.) COMFORTABLE AND VERSATILE: Our men women's bike helmets feature high-quality moisture-wicking linings to keep you sweat-free on hot summer commutes. Lightweight, breathable and comfortable, suitable for urban commuting, cycling, scooter riding Material: PC+EPS colour: White / Black / Blue Package Contents: 1 x Bike Helmet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.