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Designed with refreshing performance advantages, the Under Armour Iso-Chill ArmourVent™ Stretch Cap keeps you cool under pressure or just under sun. This Under Armour hat dumps excess heat through special vents that allow hot air out wh
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Small vents in the Under Armour Iso-Chill ArmourVent Adjustable Cap dump excess heat to keep you cool while still protecting from the sun. ArmourVent technology promotes superior breathability and comfort thanks toight, stretchy,
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The Under Armour Iso-Chill ArmourVent Adjustable Cap foradies is ideal for warm-weather adventures. Featuring ultra-breathable ArmourVent, this Under Armour cap dumps excess heat so you can keep a cool head. Theightweight, stret