Mammut Ophir 4 Harness Mens The Mammut Ophir 4 Harness have been designed for both indoor and sport climbing as well as alpine tours and climbing ascents. Crafted with four slide bloc buckles that allows the harness to be adjusted to any body size. The two-part webbing technology also ensures fantastic comfort and breathability, buckles, indicator belay ring, protector and drop seat solution minimizing twisting of leg loops and the Mammut branding completes the look.