Simms Extream Core Bottom sole and applied it to the

and applied it to the micro end of the spectrum

3% of sales goes to conservation partners

Useful when traveling

Also works with single-handed rods

Simms Extream Core Bottom sole and applied it to theSimms Extream Core BottomCLOSEOUT! Add this technical pro level bottom to your cold weather kit! The Extream Core Bottom can be worn as a baselayer under waders or on its own. Either way, it delivers high heat insulation with 2 layer Toray Karushi to provide extra warmth. Ankle cuffs are made to integrate with waders. FEATURES: 2 layer Toray Karushi delivers high heat insulation wicking ankle cuffs integrate with waders Abrasion resistant and anti