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When spring flows have receded, summer temps have the bugs moving, and the fish are starting to look up, then it's time for you ditch the waders and enjoy the warm summer days with just a pair of shorts and the Simms Men's Intruder Boots. Simms designed these boots with an integrated neoprene sock to help insulate against cold river water and protect feet from bits of debris and gravel. The sole is composed of Vibram Megagrip rubber that will bite on slick river bottoms and are a part of Simms's CleanStream line of wading gear, meaning there aren't too many places for invasive organisms to hitch a ride. Accessing the best streams can mean a few extra miles spent on the trail, so Simms built the Intruder on a cushioned EVA midsole and put abrasion resistant TPU overlays in high wear areas over the synthetic upper to help extend the life of the boots.