When pedaling at speed, the 100% S2 Sunglasses keep our view crisp and clear for quick reactions to debris and motorists. The minimalist frame and shield lens open our peripheral vision, while the HYDROILO treatment prevents water, muck, and oil from marring our view. Along gravel and over cobblestones, the rubber nose pads and temple tips keep our fit locked and bounce free. And as we test our grit on never-ending climbs, the integrated vents keep air flowing, so we don't fog up.