These warm and comfortable boots are suited for cold weather days. Padded for extra insulation, this pull-up style features a robust outsole that provides a good grip. The upper is made from metal-free nappa leather, while the lining - from chrome-free leather. Webbing pull tab at back Metal-free tanning means that a hide is converted to soft and supple leather using vegetable or synthetic extracts instead of metal saltsChrome-free tanning means that a hide is converted to soft and supple leather using vegetable or synthetic extracts instead of chromium sulphate