Tucker created the ErgoBalance™ stirrup design to add even more comfort features to your saddle. What makes these stirrups so great is the angled cone which helps keep a rider balanced in the saddle, keeping the foot flat which decreases knee and ankle fatigue. Trail Glide™ stirrups are made of durable, light-weight, anodized aluminum alloy and stainless steel hardware. They have a comfortable, thick sponge rubber foot cushion (included) which further helps to reduce fatigue in the rider’s knees and ankles.