I borrowed this seat pad from a friend for a 4 day canoe trip. The pad has two straps that easily hit around the molded bow seat of an Old Town Guide 147 canoe and once cinched down they kept the pad firmly in place. I checked the strap several times during the trip but they hadn't loosened and the pad never shifted.
The pad itself is foam with a removable ripstop nylon cover, convenient for cleaning. The pad was firm enough to be supportive get had just enough give to alleviate pressure points. The pad was thick enough to do the job without noticeably raising the paddler's center of gravity.The cover had enough texture to grip wet nylon shorts so there was no uncomfortable slipping and sliding like I've experienced in the unpadded, molded plastic seats Old Town uses.
I have struggled with lower back pain for years and a seat can make or break an experience for me. This pad did an admirable job of keeping me comfortable while being unobtrusive. If I spent more time paddling a canoe instead of SOT kayaks I would probably buy my own.