The sealskinz thin mid length womens sock can be worn for any activity where you require maximum breathability and your calves and shins to be covered these socks are part of the aqua dynamic design meaning they are completely waterproof windproof and most of all breathable these womens sealskinz socks use a merino wool lining which provides moisture control this material pulls any perspiration from the inside of the sock onto the outside of the material for an enhanced comfort sealskinz t