DLX Winter Walking Boot Vibram Arctic Grip Sole Engineered to Improve Grip on Cold Ice or Snowy Surfaces Suede Upper Waterproof and Breathable Membrane Protected Rubber Surround Guessetted Tongue Warm Lined Cushioned Collar Moulded Footbed Main Features Vibram Arctic Grip Sole. Durable Vibram rubber soles offer outstanding traction, great for mixed terrain. Suede Upper. The suede upper has a waterproof and breathable membrane to stop water from penetrating inside the boot. Warm Lined Cushioned Collar. The cushioned collar offers comfort and support, keeping your feet cosy and insulated throughout your chosen outdoor pursuit.