There is nothing worse than seeing a smart looking bike with a rough looking bike lock holding tightly onto a lamppost, but it does not have to be that way, especially with the Hiplok Wearable Bike Lock! This is more like a seat belt that wraps around you when not in use, but is strong enough to make sure that nobody is going steal your bike.
These are features and details for the brilliant Hiplok device;
How you wear it: Adjust the Hiplok around waist to a secure, comfortable tension as you would a normal belt or aircraft seat strap. How you lock it: Put key into padlock buckle, take other end of belt and loop the last chain link into the padlock loop, lock bike up!
Priced at $113 in the US and around £75 in the UK
Source [Cool Material]