Leak Proof The Hydro Flask Chug Cap is a versatile and user-friendly accessory designed to enhance your hydration experience. Its leak-proof design guarantees that you can confidently carry your bottle in bags or backpacks without worrying about spills. The cap's wide mouth allows for easy filling, cleaning, and, most importantly, swift, one-handed drinking. Whether you're sipping on water during a hike or savoring your morning coffee, the Chug Cap provides a smooth flow of liquid, making it effortless to stay hydrated