Helda Plus Sandanyl 2800 Black Size:40 acid and electric shock resistant sole Size:M6 W8 acid and electric shock resistant sole • Waterproof membrane seals out water and lets moisture escape• Protective shell keeps feet dry• Waterproof full grain leather upper• Metal hook and eyelets for added durability• 100% recycled laces and webbing• Bellows tongue keeps out debris• Molded TPU heel counter for security• Gaiter D Ring• Heel pull tab for easy on and off• 100% recycled fleece lining• 200 grams Primaloft® Gold Eco Series synthetic insulation• 100% recycled mesh footbed cover• Cleansport NXT™ treated for natural odor control• 50% recycled removable EVA foam footbed• Molded nylon arch shank• Merrell Air Cushion in the heel absorbs shock and adds stability• Lightweight EVA foam midsole for stability and comfort• Merrell sticky rubber outsole designed for winter optimizes traction over cold weather surface conditions Adjustable strap with buckle fastening guarantees an effortless walk