Sierra SS1 is our latest release in high-tech, super sporty full shield eyewear. No matter if you're running a marathon or cycling a gran fondo, the Sierra SS1 is purpose built for extreme events as well as everyday outdoor activities such as hiking, running, mountain biking, tennis and boating. This full shield model sports a modern cylindrical lens to enhance your visual perception of the elements ahead and constantly keeps you protected while doing so.

• Weight: 29g/1oz
• Eye size: 135mm
• DBL: 24mm
• Temple: 132mm
• A: 135mm
• B: 55mm
• Base curve: 6 (Cylindrical)
• Red Flash Mirrored CAT 3 Lenses
• 12% Light Transmission (LTV)

FEATURES: Lightweight and durable temple arms with elegant cylindrical mirrored lenses that boast 4K optical technology to block 100% UVA/UVB rays. Sierra SS1 also sports ultra-grip adjustable temple arms and an adjustable nose pads for a no-slip experience during any extreme activity.