Drifter Bags has been making high quality, high-function, affordable bags in the USA. Originally founded as a parachute rigging business, Drifter expanded to bags and offer a complete line of well designed and timeless pieces, including the featured Square Back. Buy it here for $75.33.
From Drifter Bags:
1000D Cordura fabric, adjustable shoulder straps, carry handle, padded back. Zipper opening, two pockets on inside one with zipper closure. Two side pockets on each side with silver snaps. Tan leather patch on upper left side. Binding tape to finish off all seams.