It wicks away the sweat, but I've always found that when it's really hot it tends to make you warmer, and even though it's wicking the sweat away you'd be cooler without it. They're great when it's not absolutely roasting out though.
@Tyrrell started
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It wicks away the sweat, but I've always found that when it's really hot it tends to make you warmer, and even though it's wicking the sweat away you'd be cooler without it. They're great when it's not absolutely roasting out though.