Enduring Comfort is a way of life at Bridgedale. WoolFusion® is Bridgedale’s unique technology which combines the highest quality natural yarns; Tough wool or Merino wool, and fuses them with high performance microfibres; Coolmax® or Isolfil®. Whether for walking the Appalachian Trail or climbing Mount Fuji, Bridgedale socks have become the most trusted and comfortable sock brand on the market.