Belleville Boots 770V VANGUARD 200g Insulated Waterproof Boot ASR Interference Rejection Pressing in .17 Hornet Interference Rejection Pressing in on the Gain knob cycles you through ten different IR setting to allow you to knock out interference from another close by depth finder This one piece tactical multi slot base is constructed of aluminum and includes mounting hardware SPECIFICATIONS DOWNLOAD SPECS PDF Color Black Height 8” (Standard Military Height) Upper Cattlehide Leather Nylon Midsole Polyurethane Footbed Polyurethane Lining GORE TEX Waterproof lining Insulation 200g THINSULATE™ Toe Protection Soft Toe Zipper No Manufacturing Made in USA Berry Compliant the 770 features 200 grams of Thinsulate insulation and a Gore Tex waterproof bootie which allows your feet to stay warm