What is four-way flex fabric and why does it matter for MTB shorts

or nutrition within easy reach without the need for additional bags

we prioritize quality and performance

The performance-oriented cut reduces excess fabric and improves aerodynamics

S1 Lifer Helmet - Black Matte bike kit set What is four-way flex fabricThe S1 Lifer Helmet is one of the best fitting and safest helmets on the market. All S1 Lifer Helmets are manufactured with specially formulated EPS Fusion Foam which allows it to protect your head from multiple low force impacts as well as high impacts. The Lifer Helmet is a dual certified helmet and is up to 5x more protective than the soft foam non certified helmets. Whether you're riding your bike down the street or rolling at a local skatepark