Capacities range from small 8-ounce bottles up to 64-ounce jugs. Common sizes noted in listings include 8, 12, 14, 16, 24, 32 and 64 ounces.
Listings commonly identify bottles made from general plastics such as PETG (Polyethylene Terephthalate Glycol), while lids and caps are often made from plastics like polypropylene or from silicone.
Many bottles include printed measurement markings (cups, ounces, or milliliters) and milestone or progress markers on the side to help users monitor hydration throughout the day.
Listings frequently state that bottles are BPA-free and call out the bottle materials used. Some listings also note cleaning recommendations (for example, dishwasher compatibility) alongside material and safety information.
Listings commonly highlight leak-resistant or leak-proof caps, button or lid locks, spill-proof straws, and valves or similar features designed to reduce leaking.