NEW for 2019-20. New Formula, better taste, and more flavors. Nuun is back as a major sponsor of the Allstate Hot Chocolate 15k/5k this season and has updated their formula to be better tasting and faster acting. Now with new flavors and new formulas Nuun will be your go to re-hydration tablet. This seasons line includes an improved Sport Version, Caffeine Version, and a Vitamin Version.