Instruct: Classify the given review into positive or negative sentiment.
Query: I've gone through several pairs in 12+ years

Early in the '90s I happened to buy a pair of these and I have always had a good pair and an aging pair since then. They are extremely comfortable and they give me an excellent sense of being solidly on the ground. I wear these so much that even over the winter the stripes on my feet never go away completely!