Given the option of keeping five Hammer Gel packs in our jersey pockets to tear open with our teeth one by one, or keeping the contents in a dedicated receptacle like the Hammer Nutrition Flask, we'd choose the latter. The Nutrition Flask holds five Gel servings, and features a thick construction that's compatible with Hammer's bike holders. The flask also uses both a molded fingertip design, and a hygienic, secure cap, that allows you to hammer down your gel—all puns intended.