Designed for use on the following models, 106, 206, 306, 225, 335, 445, Packington and attaches to the five loops of these models. The BPH provides the facility to turn a shoulder bag into a rucksack.
The whole, non-roller buckles used on the Hadley range should prevent the fastening tabs from accidentally coming undone and getting lost, but just in case, Hadley include them as an accessory.