Woolrich Big Woolly Mid Calf Color:Balsamic Rye thin blade is flexible and

thin blade is  flexible and has a fluted edge on both sides

and 100% US-grown merino wool provides exceptional  insulation

Center-front Vislon® zipper and stand-up collar

Ultra-lightweight design:

Woolrich Big Woolly Mid Calf Color:Balsamic Rye thin blade is flexible andThese heavyweight and high density over the calf socks are designed for extreme work or weather. Features and Benefits Constructed with Uncrushable Merino lambswool. Designed with high density plaiting to create an environment for optimal wool performance. Provides better wicking action, pilling resistance, abrasion resistance and drying time than any other merino wool seen before Made from 88% Uncrushable Merino Wool, 10% Stretch Nylon and 2% Spandex