I bulk ordered SIS hydration tabs, gels, and bars this summer.
Bars and tabs were Nice enough. But the gels possibly the best I've tried. A gel you can neck while mashing up Climb, without gluing Your mouth together and suffercating. Is definitely a bonus.
http://www.scienceinsport.com/sis-products/sis-all-products/
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It's not friday but sale is awnnnn!