Simms G3 Guide Boot is built for endurance, comfort, and in-river stability. This grippy standard is worn by guides and anglers who live to get it done. Ultra-durable construction uses a blend of high-abrasion textile mesh, synthetic and natural rubber with scratch rubber overlays. The traditional work-boot build delivers near-permanent durability in a wading kit. Outsole options let you tailor grip to conditions. Specify: (1) Vibram sole or (2) Felt sole. Vibram Idrogrip with Traction Lug offers about 20% better wet-slip resistance than standard Idrogrip, and both outsoles support Simms Hardbite and Alumibite Star Cleats and Hardbite Studs. Outsole options: Vibram Idrogrip with Traction Lug or Felt outsole Upper materials: high-abrasion textile mesh with synthetic and natural rubber and scratch rubber overlays Construction: traditional work-boot design for long-wearing durability in river conditions Cleat compatibility: accepts Simms Hardbite, Alumibite Star Cleats, and Hardbite Studs Target use: guides and anglers who require in-river stability and all-day support