More than large enough for me, never filled it to capacity. Al. stays and suspension similar to an internal frame backpack, load adjusters on belt and to the top flap. Lots of adjustments. I removed the mesh pockets from the sides, didn't need them and they were a bother in a solo canoe. Light weight material for construction, but never failed on me. Comfortable to carry. Lots of lift handles/straps. Large extendable collar and top flap to cover it.
Woods Mason pack.
butthead