The material is very good, as it both wicks and breathes well, but when it comes to wicking sweat off your head, less is more. You want something that wicks and evaporates sweat, NOT something that tries to store sweat in heavy bands. The elastic band gave me a headache in under 5 minutes.
There is a microfibre terrycloth sweat sponge across the forehead, which just fills up with sweat that runs into your eyes, and nothing in that elastic band is going to absorb or wick anything, so I cut it out with a scissors, making that a complete waste. Seriously, who designed this? This is a garment for CYCLISTS, who make lots of their own wind, not construction workers standing around who can stop and squeeze the sweat out of it every 15 minutes.
Use one of these every time I go running (daily). Protects my bald head from the sun, and keeps the sweat off my face. The elastic in these lasts many years as well, as I've used these headbands for the past decade.
I live in a hot and humid climate and value something that will keep sweat from running down my forehead and onto my glasses. Unfortunately, I guess I have a sweaty head, at least when I'm in the middle of a hot ride, and nothing I've tried really works all that well. However, compared to using nothing, this does slow down the drips, it's comfortable to wear and fits under my helmet with no issues. I use it almost daily.