One other important construction detail is the zippers
$2,199.95 Developed through a collaboration with Penske Racing to reduce weight for use in NASCAR and engineered for dirt racing, this ultra-lightweight version of the RS7 Carbon combines an aerospace-grade carbon shell, reinforced energy absorbing liner system, and the performance features of the HP7 to create the most advanced, lightweight Snell rated helmet that can be used in some of the most most demanding forms of dirt racing
The scientists conducted 330 tests to measure how well 10 popular football helmet designs protected against traumatic brain injury, including: Adams a2000, Rawlings Quantum, Riddell 360, Riddell Revolution, Riddell Revolution Speed, Riddell VSR4, Schutt Air Advantage, Schutt DNA Pro+, Xenith X1 and Xenith X2
Wheels are a lifesaver inside the airport, but they just weigh you down outside air-conditioned terminals
K2 Built for Comfort line prioritizes keeping you in your ski boots all day
