Simms G4 Boa® Boot


Simms G4 Boa® Boot

Step into Simms’ G4 Boa® Boot and elevate your fishing experience thanks to an asymmetrical Boa® system that delivers an articulated, secure fit over and across the instep. Underneath the G4 chassis you’ll find an advanced RiverTread™ platform that minimizes rigid materials in exchange for maximized proprioception—your ability to feel and adapt to an ever-changing underfoot environment. In addition, Vibram® Idrogrip outsoles provide great grip across slick underwater obstacles via multi-directional lugs—compatible with all Simms’ AlumiBite™ and HardBite™ cleats and studs.

Inside the boot is an environment hardwired for warmth and comfort, featuring a lined neoprene finish, cushioned where you need it most and ultra-smooth for easy on/off performance.

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River Tread

  • 4 mm self-sharpening
  • multi-directional lugs for a great grip over various terrains

Technology and Compound


  • Ideal on wet surfaces
  • Improved grip on slippery terrain
  • Inspired by free climbing rubber