From Black Country website:GPXThe GPX is our foundation all purpose saddle lending itself to a multitude of disciplines.It features a medium depth seat as do all saddles in the GP range though it has a slightly more forward knee position than the GP Event, allowing a longer hip-to-knee measurement for the taller rider.The variety of trees available for this efficient saddle allow us to work with all profiles of horses and ponies.– “A popular choice for taller riders”This saddle features spring tree, deep seat, and substantial knee block to keep you secure. Price includes cover