Rugged, abrasion-resistant knit upper Stratafuse™ exoskeleton provides a glove-like fit and extremely lightweight support Bellows tongue keeps debris out Kinetic Fit™ BASE removable contoured insole for flexible support Merrell Air Cushion in the heel absorbs shock and adds stability EVA foam midsole for stability and comfort Lightweight FlexPlate™ technology provides torsional rigidity Flex Index Grade 1 Vibram® Megagrip Vegan-friendly 5mm lug depth Size 13 Good preloved condition