This simple and efficient idea combines a vest-style double gear sling with detachable miniature rucksack (13lt.). The gear sling allows comfortable transport of an otherwise awkward quantity of gear whilst climbing. The added rucksack is very useful for small loads, shoes for the descent, car keys, water, snacks, or rain gear…..you can leave it at the base or use it by itself without the gear sling. Use your imagination. Whilst on the wall just release the strap on one side to swing the rucksack to your front, fill it up and empty it and then just fix it onto your back again.