replaced 4 year old pair. I had to sew up about one inch of the end of the flip mitts after a couple years, but they were fine after that. the neoprene thumb tip finally wore out on one glove. I use them mostly for photography, but also occasional kayaking in colder weather and cross country skiing. I live in central new york and frequently visit the adirondacks. the flip thumb is the weak the weak spot and the first component to fail after 5 seasons of moderate use. If you can improve that, you would get the full five star. A nice product overall at an attractive price point. You should actively market to photographers.