Lowepro m-Trekker BP 150 (Charcoal Grey)

The m-Trekker BP 150 opens against your back rather than at the front, so the camera compartment faces the wearer and cannot be reached while the bag is on. The profile is deliberately narrow, which keeps a mirrorless body and two or three lenses held close instead of swinging, and stops the pack reading as camera gear on a busy street.

Inside, the camera compartment takes a body like a Sony a7, an Olympus OM-D E-M10 or a Canon EOS M5, with a separate top compartment for the day's other things and a padded sleeve for up to a 12-inch laptop or a 13-inch tablet. Empty weight is 944 g, so the load you carry is the gear rather than the bag.