The Simms wader that set the standard for all other waders. MADE IN MONTANA Simms proudly designs and manufacturers waders in our Bozeman, Montana factory. LS (Short)43" - 44" 31" - 32" 9 - 11. FABRIC TECH: Upper: 3-layer waterproof, breathable Gore-Tex Shell; Lower: 4-Layer waterproof, breathable Gore-Tex Pro Shell.