I'm a huge fan of boat shoes and canvas sneakers, however I have the unfortunate ability to turn shoes into hazardous odor delivery systems if I don't wear socks with them. So I've been through at least 4 other brands of liner socks, and these are the only ones that work. Others will slide off at the heel and end up bunched under foot, so you have to constantly take your shoe off to readjust, but the Taft liners silicone grips in the heel work, and continue to work after hundreds of washes! I'm up to 6 pair now in my rotation, and love them. These even stay on when you aren't wearing shoes!