Saucony Men's Peregrine 4 Trail Running Shoe Synthetic and Nylon Imported Rubber sole FlexFilm upper HydraMAX moisture-wicking collar Gusseted tongue Gaiter compatibility HRC+ Strobel Board Full-length PowerGrid cushioning Comfortlite sockliner SSL EVA midsole Nylon fiber forefoot rock plate External Bedrock Outsole Plate XT-900 carbon rubber outsole Weight: 9.4 oz Protection and cushioning come in an attractive and lightweight package with the Peregrine 4 from Saucony.