TIPS: To Mexican customers. Due to new changes in logistics policies, Mexico's logistics channels strictly limit the volume of packages. One helmet one order, If you want to buy 2 helmets, please place 2 orders.otherwise the package will not be sent successfully. Thanks for your support. GUB XXL 61-65cm Men's Helmet Cycling Mtb Integrated Molding Electric Scooter Helmet 265g Ultralight 21 Vents Breathable Product informations： Brand Name: GUB Model No.: D65 Material: PC+EPS Vents: 21 Weight: about 265g Size: XXL (61-65cm) Color: Matte black/matte navy blue /matte white Age Group: (Adults) Men and Women Application: Road Bicycle/ MTB bike Construction: In-mold Polycarbonate Shell Feature 1:Integrated molding/simple shape Feature 2:multi - ventilation holes/multi - color optional Feature 3:Big head circumference design big head circumference Make cycling unfettered comparison at a glance Don't worry about buying it back is not suitable anymore It's the gospel of big head circumference Air ventilation Reduce wind resistance Up to 21 hole vents for heat dissipation and ventilation Riding is not stuffy EPS foam body PC integrated housing Adopt integrated forming process, slow shock and anti impact Light and comfortable Big but not heavy It only weighs about 265g Make cycling easier Comfortable lining Easy to disassemble and wash Built-in soft lining, comfortable to wear Easy to disassemble and wash, quick to absorb sweat Adjusting knob Free regulation Suitable for 61~65cm head circumference, the size can be adjusted Product details The depth is adjustable Can adjust the depth up and down, complete wrap the back of the head Comfortable chin pad Detachable wicking chin pad for comfort and hygiene Easy and smooth buckle High quality buckle, fast and convenient without clamping Color display