The new model CSO No.Ⅰ mat is ideal for enjoying the Back on Track effect during training and / or competition.Breathable mat even during intense exercise. Mat more unstitched than the classic cso mat to further reduce the pressure on the withers, and thicker padding. Anatomical shape. The No.ⅠCSO mat is suitable for show jumping and eventing saddles. Suitable for normal saddle sizes.