I work construction. In these dog days of summer, heat rash and chafing are a problem on my inner thighs every year. I bought these to wear under my bib overalls to prevent this problem, and they work like a charm. Despite temperatures consistently in the 90s (mid to upper 30s C), my thighs have remained free of any kind of rash or discomfort. And they're way cheaper than bike shorts, and lighter weight material. I cannot speak to their ultimate durability, but after a few washings, they are still the same. If it turns out they only last one season, I don't care. I will buy another 6 or 8 pair next year. It's worth it to me. Perhaps this is an unusual reason for purchasing these, but I'm completely satisfied.