I bought a pair of 'roubaix' fabric leg warmers off
ebay for £7, over a year ago - last winter. Very pleased with them, and they've been used exclusively. Have short 6" zips at the ankle, and the std rubbery grips at top, rather than silicone. The zips just help to get the warmers over my feet, would not fit over shoes. The only time I 'feel' the zips are if I manage to get them at the back up from my heel, and are underneath the overshoe rear zips.