Hiplok is an English company specializing in bicycle security. As the name suggests, these are locks meant to be carried around the waist. The newest offering from the company is the Hiplok Gold. This is their highest rated lock, with a secure gold rating. The chain is 10mm hardened steel while the padlock is 12mm hardened steel. The lock weighs 5.3 pounds, and ships with three replaceable coded keys. This is serious security for those wanting to keep their rides safe from the hands of bike thieves.