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TorHans claims its Aero20 is the “world’s fastest hydration system,” and it’s easy to see why—not many other hydration systems come standard with an airfoil shaped straw. It’s also easy to refill. And in addition to a splash resistant port—similar to many other systems—the Aero20’s patented XFlow cap also features a hinged magnetic cover that provides a second level of spill protection. When paired with the TorHans AeroMount ($25), the Aero20 fits most aerobars to provide a no-hassle between-the- arms hydration solution.