Propet Stability X is a comfortable active shoe. These chic sneakers have mesh and leather uppers, removable PU insoles, EVA midsoles and rubber outsoles. A brushed nylon lining wicks away moisture, while a padded tongue and collar adds all-day comfort. Leather and Mesh Uppers. Removable PU Insole. Padded Tongue and Collar. Rubber Outsole.