UP Alloy Karabiners are twist locking, light and strong.
Most UP harnesses are delivered with beefy steel karabiners which give peace of mind in spades but which do make the pack heavier than the weight watchers prefer. These alu ‘biners are as strong, but weigh much less. They are mounted as standard on the UP Alpine harness.
For further information, refer to http://www.up-paragliders.com