BIG RIG for a BIG GUY. I'm a 6'7" 370lb little guy :). I recently bought a 2019 Big Rig HD and absolutely love this thing. I never thought I would feel this stable/comfortable on a kayak ever! Just like most big guys I do have lower back problems but I feel completely comfortable in this seat, in both the upper and lower positions. I actually prefer the upper position. If you happen to be a slightly larger than average individual like myself I highly recommend to at least do a demo ride and feel the comfort for yourself. P.S I am able to stand up with ease!