The Klean Kanteen S-Biner #3 "S" shaped Stainless Steel carabiner is perfect for clipping your Klean Kanteen water bottle to just about anything. It's rugged double-clip opposing gate design should last a lifetime, and unlike using a regular, single-gate carabiner, you'll never be fumbling around trying to move one item out of the way so you can open the gate. Just two snaps and you're connected.