Ryka Dynamic 2 walking shoes help you put some pep in your step with Precise-Return™ and N-Gage layers that provide superior support. Updated cosmetics give them a dynamic look to match their name with an X-Ray frame and mono screen mesh. Ideal for fitness and casual walking. Upper:Synthetic and mesh upper enhances comfort and stability. Lace-up front with a padded heel collar provides an adjustable fit. Midsole: Textile lining provides a soft foot feel. A cushioning Precise-Return™ footbed enhances comfort. N-Gage EVA midsole. Removable insole. Outsole: High abrasion Exo-Shell with heel and forefoot grooves that promote natural flexibility.