4322 PowerStep Pinnacle 3/4The PowerStep Pinnacle 3 4 insoles with built in neutral arch support and cushioning foam layer have a low profile design and tapered edge for extra room at the toes. The non slip pad at the heel helps hold the orthotic in place. The Pinnacle 3 4 insoles feature the signature PowerStep arch shape but with a low, flat heel cradle adding stability and motion control to limit excess stress on feet, ankles, joints, and tendons. Stabilizes and aligns the