Keeping the sweat away
I love the brand Halo. I previously had the skull cap and now I have moved to these pull up head bands.
The advantage here is that part of your scalp continues to be airy and so it does help with a little bit of sweat situation.
The sweat band is good in terms of blocking most of the sweat, but its definitely not a 100% - my ride conditions are a little extreme in terms of humidity (70-85% of humidity) so maybe drier parts of the country this would be a lot more effective.
I bought this expecting that it will solve the problem of sweat dripping over eyes and goggles while cycling. It did reduced the amount but sweat still comes over the eyes and goggles.