Several years ago I viewed the web site of a backpack company (emphasizing frames, perhaps they bought pack bags??) whose external frames were advertised as being ultra-heavy duty. Rather than using cylindrical tubular aluminum for frames, they used contour-formed square tubing that included a formed bottom shelf.
My recollection is that this small family-owned company was located in Idaho or immediately surrounding area.
Please identify the company, plus web site URL.
