A single high-back folding boat seat rated to 250 lbs, this unit is the practical middle ground between a bare bench and a fixed pedestal chair. The high backrest is shaped ergonomically rather than cut flat, so it meets the spine where support is actually needed and holds a passenger upright through a long run instead of leaving the lower back to do the work. A soft padded seat sits on top of it, and the sponge fill under the cover is thick enough that hard mounting surfaces stop registering after the first few minutes. Aluminum hinges are the mechanical heart of the design: they give the frame its sturdiness while still folding smoothly, and because they are aluminum they do not seize with rust the way plated steel does in a wet environment. Folded flat with the tie-down strap secured, the seat drops from 17.5-in by 20-in by 24-in to just 17-in by 20-in by 13-in, which is the difference between blocking a walkway and stowing under a gunwale. The covering is durable waterproof PVC over the sponge, specified for long-term outdoor use where spray, rain and sun are constant rather than occasional. Mounting suits any standard 4-bolt swivel or pedestal, though neither is included and the existing mount should be checked first. The seat weighs 20 lbs, ships as one piece with a user guide, requires assembly, and is offered in blue and red.