Advanced, triple-density design provides comfort, cushioning, and support. Ideal for everyday wear, especially when standing for long periods of time. TPR comfort gel thermoplastic rubber combines cushioning and energy return for comfort. Metatarsal arch support relieves pressure from the ball of the foot. Top cloth treated with antimicrobial helps eliminate odor-causing bacteria and reduces friction. Stability cradle supports the arch and heel for greater comfort. Makes it easier to place into the shoe. Extra heel cushioning: softer gel in the heel absorbs impact at heel strike.