Anti-Fog Kazbek Glasses Select a Lens:Clear Petzl redesigned the cam geometry

Petzl redesigned the cam geometry on the Ascentree to distribute load more evenly across the rope

seat depth and bridge height

A rope running over a standard carabiner spine creates significant friction

Next up is a 2 in 1 lanyard for safe advancement into and throughout the canopy of the tree

Bright orange legs for extra visibility on curbs & sidewalks

Anti-Fog Kazbek Glasses Select a Lens:Clear Petzl redesigned the cam geometryMost situations can be handled with a standard Anti Fog lens, but for extreme environments, Edge Eyewear developed a revolutionary, military grade anti fog coating called "Vapor Shield." It is absolutely impervious to fog! These glasses are the Kazbek model.