The keyring bag weighs only 40g and comes with a stainless ring.
Its packaging is so tiny that you have no reason not to carry at least one with you at all times!
One more useful thing made from the off cuts of Ticket To The Moon hammocks to avoid waste in our factory, the keyring bag weighs in at a tiny 40g and hangs on a stainless ring. It folds to fit anywhere, so you have no reason not to carry at least one with you at all times!