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Most of Specialized helmets use that similar "Mouthport". I like my Aurora I have (similar to last year's pro-level Decibel), although not sure how much cooler it is. I haven't used my Giro Atmos in awhile for comparison purposes, but I think the Auruora keeps me pretty cool. If you don't want to spend the full $100 to try the technology, check out Specialized's website, they have some helmet models on deep discounts right now.
