Watch out for those days when the ice settles in the morning. Keep a pair of anti-slip pads in your bag or jacket pocket so you can put them on when you go to the bus or out with the dog.Also perfect for walking on the ice, jogging or walking in the forest when winter is here.You simply thread them on the toe part of the shoe and fasten behind the heel and you have very good slip protection. Easy to take off when you get home or visit a store.Takes up little space in your pocket or bag.Rubber with metal studs for good grip.The size is for "normal shoes". If you are going to wear them for rough boots, it is good to go up a size.M (38-41)L (41-44)XL (44-47)