Compression socks 15-20 mmHg six pairs ankle high socks (three black and three white).  They are unisex for men and/or women in sizes (S-M) and (L/XL).  Cost $15 These socks help people who are on their feet for long periods of time, i.e., hospital staff, airline workers, athletes, retail workers, etc. Women's (S-M) fits sizes 5.5 - 9 and (L/XL) fits sizes 8-15.  Men's (S/M) fits sizes 5-9 and (L-XL) fits sizes 8-14. Makes a very thoughtful gift!