The Neat Feat Full Length Cushioning Insole has a unique construction that catches the shock forces that constantly pound your foot with every step. The insole then redistributes the impact forces evenly through the heel and arch to reduce trauma. These insoles are specially designed to improve foot posture and relieve stress on your ankles, knees, hips and lower back. They also prevent friction and movement of the foot within the shoe. We recommend avoiding ill fitting footwear.