Add a warm and cosy touch to your winter wardrobe with these beautiful thermal mittens from John Lewis. Expertly crafted from pig's suede, they're fully lined for comfort and boast a fluffy fur trim for optimal warmth. Cut to a classic design and featuring chic strap and buckle fastening, they're the perfect finishing touch to your cold-weather outfit. PrimaLoft® is a brand of patented synthetic microfiber thermal insulation material that was developed for the United States Army in the 1980s.