Superfeet Carbon Size:B 4.5-6/2.5-4 thanks to which they are

thanks to which they are light

A C-Shell membrane protects from the elements and keeps feet dry

Premium nubuck or leather uppers feature triple buckle adjustability to accommodate various widths

yet cushion-comfortable

Microfleece lining

Superfeet Carbon Size:B 4.5-6/2.5-4 thanks to which they areGreat for Slim Fitting Athletic Footwear Breakthrough technology uses the strength of carbon fiber with ultralight foam to create one of the most innovative, high performance Superfeet insoles ever. Made to fit well in moderate to slim fitting athletic footwear, like running shoes, bike shoes and cleats. Trim to fit your shoe size. YOUR PURCHASE MAKES A DIFFERENCE Every year, Superfeet donates 1% of sales and 1,000+ volunteer hours to organizations