The hat is lightweight, which is great for running in hot weather. My issue with the hat (and I purchased one in white and one in yellow) is that there is not enough velcro on the back to create a snug fit! I got the hats specifically because they were the velcro adjusting type, which usually makes getting the correct fit very quick and easy. However, even though the band pulls through far enough, there is too much "hook" and not enough "loop."