Mainline Mips midweight Diameter (Standard): 4 in

Diameter (Standard): 4 in

2 x 2000mm

it stays torsionally stiff and stable at speed

so this T-shirt is made with fabric scraps and recycled bottles

Polygiene® Odor Control technology

Mainline Mips midweight Diameter (Standard): 4 inGive credit where credit's due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Made for going big, going fast, or both, the Smith Mainline is our pinnacle, downhill certified enduro bike helmet. Safety innovations like KOROYD and Mips provide energy absorbing impact protection so you have the confidence to get aggressive on the trail. It doesn't matter if you're slaying the EWS in Whistler or suffering