US Patent 9060590 Backpack frame

A backpack frame comprising a plurality of flexible support members wherein each of the plurality of flexible support members further comprise a top end and a bottom end, a pack further comprising a first tensioner attachment point and a second tensioner attachment point, and a plurality of tensioners wherein each of the plurality of tensioners further comprises a tension length. One of the plurality of tensioners is attached to the first tensioner attachment point and also attached to the second tensioner attachment point. One of the plurality of flexible support members extends substantially between the first tensioner attachment point and the second tensioner attachment point. The tension length of one of the plurality of tensioners is located between the first tensioner attachment point and the second tensioner attachment point. The tension length may be adjusted.