The seat is listed as 18 inches high, but it was more like 19 inches by my measurement. Quality of stitching was flawless, and the back had fibreglass battens inserted for excellent support. The seat included a "pack" on the back, and holders for 2 water bottles (or beverage of choice). This seat also had a variety of adjustments to create comfort no matter the shape of your body.
Prior to this purchase, I could last about 3 hours... and the back began to ache. This seat was well worth the $99.00 I paid just for the comfort alone. And I'm the snappiest looking yakker on the river blue kayak, blue paddle, blue PFD, and now a new Blue seat. Now if I can just find blue water boots !!!!!