At just 2.5 lbs for a medium this helmet is as light as many carbon helmets that sell for 3 to 4 times as much. Designed for BMX Racing, FreeRide and DH Mountain Biking the Default features an aerodynamic polly-alloy shell, sharp new graphics, 21 vents to keep you keep cool on hot race days, removable and washable liner and cheek pads, padded chin strap with a D ring closure, aluminum visor screws, and a CSPC certifed EPS foam liner for protection.