Dynamic, light, and precision-engineered for sport climbing, the Lithos SL Harness feels almost weightless whether you're warming up or going for the redpoint. 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. Size and fit tip: The Lithos SL introduces their new harness-sizing system—just match your waist and leg loop sizes from the chart to customize your perfect fit.