Keep your dogs from barking on long runs with these Superfeet DMP Copper insoles. Low-profile Superfeet shape provides stability to help reduce stress on your feet, ankles, and knees. Deep and narrow heel cups give you added support for high-impact training and long runs. Memory Foam foot bed contours to the foot for maximum comfort. Natural coating designed to eliminate odor-causing bacteria to keep your feet feeling fresh. Insole base at the heel has been reinforced to give you added stability and support for the foam above. 100 percent man-made materials.