Features: - Grabbing sips between reps, on a hike, or anywhere thirst strikes just got a whole lot easier with the all-new exclusive Quick Sip Cap. Designed for your 20oz and 32oz Sport Canteens, it features an extra-wide mouth for ice cubes and an easy-to-hold large handle. All it takes is a simple flip to open the top, and you’ll be hitting those hydration goals with ease. - Compatible with 20oz, 32oz, and 40oz Sport Canteens.