The River Ops(TM) boot merges durability and comfort, providing the premium support and tailored fit dedicated guides and anglers require. The exceptional durability of Korkers' River Ops(TM) boot is rooted in the new Exo-Tec(TM) technology, a molded exoskeleton of protective armor with zero exposed stitching. Not only does the Exo-Tec(TM) upper fend off abrasion from sharp rocks, but its flexibility also allows for a high range of motion and athletic movement. An enhanced TPU heel counter offers additional stability and protection while the unique internal Ankle Wrap(TM) provides excellent ankle support and comfort. Korkers Internal Drainage system quickly purges water and keeps every step feeling light and agile, while the unique Lace Lock feature allows for a customized bi-zonal fit. Features Include:Korkers' proprietary OmniTrax(R) Interchangeable Sole SystemComes standard with two sets of interchangeable solesEnhanced TPU heel counter offers additional stability and protectionInternal Ankle Wrap(TM) provides excellent ankle support and comfortInternal Drainage system quickly purges water and keeps every step feeling light and agileLace Lock feature allows for a customized bi-zonal fit