I bought these with a matching top to go hiking in cold weather. I wore them as a set every time I wore them. The top is perfect, but numerous holes have formed on the bottom, ranging in size from approximately 2mm to 6mm in diameter. I only wear them about 12-15 days and wash them 2 times. My wife suggested maybe insects. But then again the top is fine and they were kept and worn together. I would not buy again!
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