Think Tank Photo has launched a new range of photo backpacks, which it has called its StreetWalker series.

There are three new backpacks up for grabs, each with a slim vertical profile that will make sure photographers can move easily in crowded places while still allowing plenty of room for photographic equipment.

A nice touch with this range is that it addresses a common complaint from female photographers that photo backpack shoulder harnesses are designed for average-sized men.

The shoulder straps on the StreetWalker have therefore been specifically engineered to fit a wider range of sizes for both genders.

The three new StreetWalker backpacks are:

StreetWalker -- This slim, lightweight backpack will hold a Pro Size DSLR with 70-200 2.8 attached and hood in position. It includes a monopod/tripod mounting system, a contoured harness and air channel for increased comfort, and lots of pockets and organisers for customisation.

StreetWalker Pro -- This backpack is designed for a Pro Size DSLR with up to a 400 2.8 attached, or a 70-200 2.8 attached and hood in position. It also includes the monopod/tripod mounting system, the contoured harness and air channel, and lots of pockets and organisers.

StreetWalker HardDrive -- This backpack will hold most 15" laptops and a Pro Size DSLR with 70-200 2.8 attached and hood in position. It also includes the monopod/tripod mounting system, the contoured harness and air channel, and lots of pockets and organisers.

All three backpacks are available now priced at $139, $159 and $179, (around £95, £107 and £120) respectively. Specific pricing for the UK is yet to be released.