Innovative socks consisting of two layers of fabric for excellent insulation against the cold plus protection from rubbing and the resulting blisters.The exclusive two-layer fabric is the promise of an exceptional technical sock! An initial inner layer in thin, soft and insulating silk - A second outer layer in warm and soft merino wool.Its anatomical shape offers a perfect fit for left and right feet.With this sock, you’ll experience the comfort of the double inner skin and the high-protection insulating hold of the outer layer.Materials outer sock:Acrylic 47%, Polyamide 35%, Merino Wool 15%, Elastane 3%.Materials inner sock:Polyester 49%, Polyamide 38%, Silk 13%.