GU Roctane Ultra Endurance Energy Gel 24 Pack. GU Roctane gel comes from years of testing scientifically proven formulas with thousands of elite athletes training for and competing in the most physically demanding sports in the world. Roctane's advanced formula amplifies GU's original Energy Gel recipe and adds new ingredients to boost your chances of success. Now it's your turn to fill your tank with premium Roctane and compete like a pro.
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