The Connect Adjust self-belay sling from Petzl is your ideal companion for multi-pitch routes, alpine tours or big walls. You can easily adjust the sling with one hand using the ergonomically designed adjuster to suit the conditions at your belay station. You could thread a cord through an eyelet on the adjuster to make it easier to release the system under load.
Slim and saves space
The webbing connection loop is very narrow, so there is still plenty of room for your rope knots on the harness centre ring, and you can keep a good overview at the belay station.