Dynamic, light, and precision engineered for sport climbing, the Lithos SL Harness feels almost weightless while climbing. Featuring the next evolution in Warp Strength Technology, the Lithos SL strikes the perfect balance of support, comfort, and durability—meeting the demands of the most committed sport climbers, session after session. Plus, with a revolutionary sizing system, you can customize your fit like never before, dialing in the perfect waist-to-leg-loop ratio for all-day comfort.