Extra Wide Sock Co. Women's Medical Quarter Sock 93% Cotton/ 7% Nylon Made in USA Constructed from 93% Cotton, 7% Nylon Fits over casts and Unna boots, anti-microbial technology Non binding and non constricting design, Made in USA Ideal for Edema, wide or swollen feet and calves Inverted toe seam for Diabetics or sensitive feet, Medical sock