Simms M's Flyweight Boot - Vibram Packs and Vests Fly line backing comes in

Fly line backing comes in 30- and 50-lb

while the upper storage compartment is perfect for vests

is constructed from 840-denier

Wear them barefoot or stick a sock in it while storming big surf or skinny flats

Simms M's Flyweight Boot - Vibram Packs and Vests Fly line backing comes inIf the call of high mountain streams and the path less traveled ring true for you, our 42 oz. FLYWEIGHT Wading Boot Vibram Sole offers an incredibly lightweight design to help you answer the high mountain call. The low profile design maintains full wading boot functionality and the Vibram Idrogrip outsole sticks to wet, mossy rocks, and is reinforced for reliable stud retention. Low profile, lightweight synthetic boot upper Welded TPU film in high