-Synthetic and textile upper materials -Lace-up shaft -Carbon fiber toe -Moisture wicking lining -KEEN.BELLOWS FLEX technology allows footwear to bend and flex up-to 3x easier -KonnectFit heel capture system provides locked-in feel -Nylon shank for midfoot support and abrasion-resistant synthetic upper -Removable metatomical PU footbed -KEEN.ReGEN lightweight, compression-resisting midsole providing 50% more energy return -Oil & slip resisting non-marking rubber outsole -Style: 1025577 Keen Men's Kansas City Lace-Up Work Sneakers - Carbon Toe