Designed for those who need the Ultimate in support by using a proprietary heat moldable cradle. The Ultimate from Archmolds offers 1.5 mm of cushioning for additional comfort, a deep supportive heel cup, and arch cutouts in the cradle allowing the perfect amount of arch spring and flex. This item is designed for running shoes, cross trainers, tennis shoes, work boots, hiking boots, casual shoes, dress shoes , bike shoes, golfing shoes, and cleats.