What Our Gearhead® Experts Are Saying: “I’ve climbed in this harness on hard redpoint days and long gym sessions, and it disappears once I leave the ground. It’s impressively light but still comfortable when hanging on bolts. Gear capacity is minimal, so it’s not what I grab for trad or multipitch days, but for sport climbing where weight and freedom of movement matter, it’s spot on.”Who It’s ForSport climbers focused on performance and efficiency:This is for sport and gym climbers who want the lightest, least restrictive harness possible. Ideal for intermediate to advanced climbers pushing grades, projecting, or competing. Best if you’re comfortable with a stripped-down setup and don’t need lots of gear storage or adjustability.What It’s ForSport climbing and gym climbing on bolts:Designed for single-pitch routes, hard redpoints, and indoor sessions where freedom of movement and low weight matter most. Excels on steep terrain, technical sequences, and any climb where you’re hanging, resting, and trying hard.Why We Like ItUltralight feel, precise fit, surprising comfort:The minimalist design cuts everything that isn’t essential, resulting in a harness that feels barely there while climbing. Elastic leg loops move naturally, the Dyneema belay loop keeps bulk down, and the load distribution stays comfortable when you’re working moves. It’s purpose-built for sport climbing, and it shows every time you leave the ground.
Responsible Collection: Recycled/Repurposed;
Material: 80% HMPE, 20% nylon, [belay loop] Dyneema;
Buckles: 7075 aluminum waist buckle;
Gear Loops: 2;
Ice Clipper Slots: 0;
Haul Loop: no;
Chalk Bag Hanger: no;
Claimed Weight: [x-small] 6.7oz, [small] 7.2oz, [medium] 7.5oz, [large] 8.1oz;
Activity: Sport Climbing, Gym Climbing;
Leg Loops: fixed;
storecredits: 0.0;
Style Variants
Available Colors: Mammut Red
Size Reference for Mammut Sender Light Harness
Available Sizes: XS, S, M, L
