Take on the cold in style wearing this pair. The Tivoli™ IV Boots rock durable water- and wind-proof construction with advanced OutDry™ technology, 100g insulation for reliable winter-long warmth, and flexible molded rubber outsole for excellent traction. Take on the cold in style wearing this pair. The Tivoli™ IV Boots rock durable water- and wind-proof construction with advanced OutDry™ technology, 100g insulation for reliable winter-long warmth, and flexible molded rubber outsole for excellent traction. Founded in 1962, Sorel brings the spirit and heritage of expertly crafted boots to a new generation of doers, builders and creators. Their combination of quality comfort fabrics like felt, wool and premium leather and flawless construction finds an audience with fashionable folks who aren't afraid to get their boots dirty.