The Rock Canyon External Pack Frame from Allen is a lightweight, yet heavy-duty, sturdy aluminum frame that allows you to pack out your gear or harvest with ease. The frame is adjustable from 33-inches to 36-inches for increased load capacity, the bottom folding shelf gives you extra support when needed but folds flat for easy storage, and the exterior lashing points quickly secure heavy loads. Lightweight, yet heavy-duty, sturdy aluminum frame Frame is adjustable from 33-Inches to 36-Inches Bottom folding shelf gives you extra support Dense foam padded waist belt and shoulder straps