Pick up a rack of these beauties and prepare to be amazed – trust us, it really is shocking how so much gear can weigh so little!

Being super light is not the whole story though. You also need to find the optimum balance between size, strength and weight.

Sure, we could have made this biner smaller, and as a result, lighter, but there comes a point when a tiny biner becomes a key ring – too fiddley to hold. Functionality is just as important as weight. At 28g the Phantom is astonishingly light.