P16 Flat seat, 16 inches. Runs large so I call it a 16.5. Model year: 2007 Medium-Narrow tree One owner, who has OCD. Gets meticulously cleaned and conditioned every ride. Has never needed repairs. One slight blemish on the seat where a horse tried to nibble it. Rarely noticeable except in certain light. Amazing condition, this is my favorite saddle, one I swore I’d never sell… but I finally excepted that it doesn’t fit my horse.