London Cyclist

"There is also a clip-on for a rear light, and a detachable strap for use off the bike."

The Hiplok, a wearable bike lock, delivers good level of secondary security and can be conveniently strapped to the waist. However, concerns about adverse impacts during accidents and its high cost might make potential buyers hesitant.

In practice, this felt like a good combination. You could take it slow and let the bike do the hard work or push yourself and get more of a workout.