I bought these during the snow and ice last January after a big fall on the way to work. they arrived just as the last of the snow was clearing so I have only been able to try them out now. these are brill! they fit over most flat shoes (well I haven't tried them with heels!!!) and I have used them with my standard no grip work shoes. wearing them I am able to walk normally to the bus stop and through town to my workplace without falling on my bum! they aren't really noticeable either while wearing.
they are easy to fit, stretching over your shoes/boots for a snug fit and when you remove them they kind of fold automatically in half. in a plastic carrier they fitted nicely into my handbag. I have found they are not good for walking on normal surfaces, but I either remove them of just step carefully. I wish I had bought these earlier and would highly recommend for anyone, especially elderly people wanting to go about their normal business in the snow and ice.