They are very comfortable and stand up to frequent wear.  I'm a 34-inch waist and ordered size large, which was perfect for me.  I got these for a two week trip to Hawaii, where I would be doing a lot of hiking and water sports.  So they had to be comfortable either wet or dry and I'm happy to say they were.

They didn't chafe while hiking and were great to wear under board shorts in the pool or the ocean.  They are not quick drying(they will dry overnight), but they are very light-weight and comfortable when wet.

Buy with confidence, you will not be sorry.