ONE HAND USE - When you're running or training, you don't always have a spare hand when you need to hydrate, that's why we made the pop top lid that only requires one hand to work PRACTICAL – Our bottles feature a carry loop for easy transport, marked with ounces & milliliters for easy measuring International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.