AP (fits saddles up to 17.5" with a moderate knee roll), Close Contact (fits up to 17.5" with a prominent knee roll), Dressage (fits up to 17.5", 19" pommel to cantle, 24.5" flap length, 15.5" flap width), Pony (fits most pony saddles, 17" pommel to cantle, 22" flap length, 13" flap width), and Western (fits most western saddles).