A few Pilates exercise products to consider:

The Pilates Solution
The only product in this high converting niche, The Pilates Solution teaches members how to loose weight and feel great using pilates. 50%+ commish, plus bonuses for performing affiliates.
The Pilates Solution

Pilates For Horse Riders
An exercise program specific to horses riders. A pilates based exercise plan to teach horse riders how to gain and train core stability to make them a better rider. Designed by an expert rider and Physiotherapist. Success is guaranteed if followed.
Pilates For Horse Riders