Quilted nylon uppers are durable and wind resistant; wide gaiters and collars allow easy on/off Adjustable midfoot straps with hook-and-loop closures keep boots snug and secure Polyester faux fur linings and synthetic microfiber insulation add soft comfort and warmth 6mm felt layer underfoot helps block out the cold to keep feet warm Waterproof, flexible thermoplastic rubber shells top rubber outsoles; lugs provide traction on snow, slush and wet surfaces