Instead of scarves or bandannas I suggest to get a cooling towel. http://www.amazon.com/Chill-Pal-Ultimate-Cooling-Guaranteed/dp/B00XKLYWFU/ref=sr_1_1?ie=UTF8&qid=1462816842&sr=8-1-spons&keywords=cooling+towel&psc=1 Had one of these last year and it stayed wet for a long time and was very cool around my neck.