Arc'teryx  Lithos SL Harness

I loved this harness. It is super light weight and minimal, all the bulk is cut down but it still feels secure and super sturdy. Its a stand out against all other harnesses I have used in the past with very modern design. It is incredibly packable, and though I have only used it in the gym, I am stoked to bring it out in the wild.

I love this new sport climbing harness - it's super lightweight and moves with you so much that you barely notice it when you're climbing. I'm always choosing this harness for any single pitch climbing. Although it's only got two gear loops, I've been able to get 12 draws on each loop comfortably, more if you squish. It's not often I need more than 24 draws to sport climb. Love the new sizing, it's important to fit your harness to your body type and not to your gender! I also really like that the butt straps are easily replaceable - I've had other harnesses in the past where blowing out those little elastic straps means you have to replace the entire harness.

THE sport climbing harness. Incredibly light weight and allows for the ultimate freedom of movement - you will forget you have it on. I have been using and testing for 2 years - with over 200 outside climbing days logged in it. I can say that the durability, comfort and performance of this harness is 10/10. Oh lastly - I can easily load 18 quickdraws on the gear loops.

The sizing on this is really different compared to how Arcteryx harnesses usually fit and needs improvement. Both A and B sizes of leg loops are very big. I do not know why they made the A size leg loops so large and overlap with the B size, it really defeats the purpose of this sizing system. I am a longterm Arcteryx harness user and I cannot even get a useable fit in this harness. I hope they rethink the sizing range, easy fix would be just make A leg loops smaller. It's not comfortable (and scary haha) as a guy to have loose leg loops and take falls.

I’ve been on the hunt for a harness that wouldn’t weigh down my pack on long approaches, and the Lithos SL was exactly what I was looking for. Took it to the gym first to get a feel for it, and now I’m excited to take it outside and get on some walls! My old harness was pretty chunky - I’d always have to shuffle it around to fit in my bag. This one is way lighter and more minimal. It has its main adjustment feature around the waist and thinner strappings which makes it feel pretty weightless, but still very safe and secure. Really happy with this one!

Really impressed with this new harness. The sizing is so inclusive compared to other similar harnesses on the market and the ability to get a better waist to leg loop fit made my day out climbing much more comfortable! The harness is incredibly lightweight without it feeling flimsy and the quality of the materials is amazing. Still feels very supportive when resting on routes. Great for those looking for a lightweight set up. 10/10 recommend!

Stoked on this new sport climbing harness! It is super lightweight and perfect for sending your single pitch project! The new sizing system means you can tailor the fit to your individual dimension by mix and matching the harness + leg loop sizes. It doesn't seem the MOST comfortable for long belays or hanging in your harness for an extended time, but when you are ready to let it rip, this harness is an excellent choice!

Disappointed with this new "size inclusive" range. The smallest waist is still too big in the AR and this harness. 25.5 inches doesn't even really adequately cover the range of clothing size of US 2 or 0. Let alone the really petite. I love arcteryx harness but they are just too big to feel safe without many layers sport climbing.

If you were a fan of the of the SL 340, then you'll love this harness. It's tailor made for sport climbing with a ton of new upgrades that makes it feel super sleek and lightweight! Also, the mix-and-match sizing system is great once you dial in your fit. Love the simple color way, too!

The Lithos is incredibly lightweight and moves with you so naturally that I barely notice I’m wearing it. I also really like the new sizing options. Even with just two gear loops, I can still comfortably rack 12+ quickdraws per side.