Breathable mesh and durable synthetic upper materials. No-sew upper application helps reduce the likelihood of irritation. Sure Lace" supplies added mid-foot support and a snug in-shoe feel. Lightly padded tongue and collar. EVA foam collar helps reduce moisture absorption. Soft fabric lining offers a great in-shoe feel. Removable, molded foam insole. ACTEVA" midsole is 24% lighter than standard midsole foam, and has optimal compression set properties. Differential: 10 mm ATtread outsole features both trail and running lug designs for optimal on- and off-road use. ROCK STOPe toe protection. Imported.