The no. 10 from Falke is a nice summer business sock made of 93% cotton. The sock is made of Egyptian Karna cotton that provides a silky sheen. The sock has a timeless ribbed pattern. The material provides a pleasant wearing comfort and a perfect fit. Italian spinning mills make a yarn of extra long fibers, double twisted for extra strength and durability. The load zones in the No. 10 from Falke are reinforced for longevity of the sock. The collar has no pressure points because the seam is made by hand. The material ensures that the sock is airy and perfect to wear during warm days.