Simms Flyweight Access Boot. Your lean, mean trail-to-river machine Flyweight Boot cuts ounces in exchange for maximum output, relentless grip, and standup stability and comfort. Features Constructed of ultra lightweight mesh with high-frequency welded polyurethane in high abuse areas Vibram Idropgrip Lite - exclusive to Simms - provides the highest grip possible Lightweight and flexible webbing-lacing on lower, with durable speed hooks on top Lightweight, non-absorbent mesh uppers Compression molded, dual-density EVA midsole for all day cushioning and support Welded TPU overlays in high-abrasion areas for added durability ESS midsole anchor points for stud retention Supportive, but lightweight and comfortable webbing lacing hardware across the foot Vibram Idrogrip Lite outsole Simms Flyweight Access Boot - Dark Stone