Eleven years ago my son returned from a month in the Wind River wilderness with the National Outdoor Leadership School (NOLS) and brought back a pair of OR gaiters - identical to Rocky Mountain High Gaiters. I "acquired" them from him and used them ever since, until this year when I realized they got lost in a recent move. So I ordered another pair from OR and was overjoyed to see that they had almost not changed, and that the couple of minuscule changes to this excellent product actually made them better. I especially appreciate the way that they cover my lower leg. In the winter they add a layer to keep my lower legs warm and dry, and in the spring and fall they keep out stones and ticks. If I hadn't lost the pair my son brought home from NOLS, I would still be using them - yes, they last that long.