Mammut Alnasca Review

For sport climbing and gym climbing where you don't need a ton of storage space on your gear loops or a ton of padding on your leg loops, the Alnasca is hard to beat. This is a well-designed lightweight model made for gym climbing. Its wide mesh waistband distributes weight well, without inhibiting movement. The leg loops are sleek enough to wear this harness around for hours without hardly noticing it's there. The belay loop is definitely sleek — almost to the point of worrying about its durability. The gear loops are also so small that it's hard to fit a lot of gear on them. These downsides are not a huge deal if you plan to mostly use this harness in the gym, though. For that reason, the Alnasca is our Top Pick for Gym Climbing.