carabiner

We used these for toproping sport routes or for first bolts with tough moves over bad landings where, if the rope should somehow unclip itself from a regular carabiner, a fall would be catastrophic.

AmazonThis easily-transported hammock comes with nine-foot-long tree straps and carabiners so it can be put up in minutes.

The DoubleNest comes with a set of carabiners, but straps are sold separately.

This ultrathin nanofiber towel stuffs into its own unique silicone case, and with the sturdy carabiner clip, it attaches to the outside of a backpack, which is where it lives permanently for me.

A lightweight construction with included carabiner holes or other fastening design elements ensures that the ice pick is within reach at a moment’s notice without adding extra bulk, which is critical for maintaining mobility.

The carabiner is a D-shaped metal clamp that has a gate that opens and closes.