Review: Mammut Smart Alpine and Petzl GRIGRI + (belay devices)
With more and more options for a safer belay, The Zine got its hands on two of the most innovative devices, The Mammut Smart Alpine and the Petzl GRIGRI + (Plus). Let’s start with the Smart. Mammut Smart Alpine Retail: $49.95 I first noticed this belay device hanging off the harness of a friend who runs…