What is a key material function of saddle pads?

Saddle pads serve a critical role in equestrian settings, and a key material function is indeed absorbing sweat and shock. This function is vital for both the horse's comfort and the rider’s stability. When a saddle is placed on a horse’s back, the saddle pad acts as a cushioning layer that helps distribute the weight of the saddle evenly, which minimizes pressure points and potential discomfort for the horse.

Additionally, saddle pads absorb sweat from the horse, which helps manage moisture and can prevent chafing or skin irritation. If a saddle pad is effective at absorbing shock, it can reduce the impact on the horse’s back caused by the rider's movements while riding, as well as the motion of the horse itself. This protective feature not only enhances the horse's performance by ensuring it can move freely and comfortably but also contributes to its overall well-being during rides.

The other functions mentioned in the other options, such as providing mobility, adding weight, or enhancing grip, do not accurately capture the primary material function of saddle pads, hence they don't align with the essential purpose and benefits that saddle pads provide in equestrian practice.