Although countless articles have been written about safety on roller skis, I have seen none recommending the use of a rearview mirror, such as those that attach to the skier’s eyewear. I’ve used a mirror that attaches to my glasses or sunglasses for decades and will not roller-ski (or cycle) without it. To add to the recent discussions on safe roller skiing, please consider the following advantages. First, the eyeglass mirror obviously allows the skier...