The copper water bottle you mentioned is designed specifically for gym and yoga enthusiasts. It has a capacity of 1 liter and is advertised as joint-free and leak-proof. Let's break down these features:Copper Water Bottle: The bottle is made of copper which is believed to have health benefits and antimicrobial properties. As mentioned earlier copper has been traditionally used in various cultures for storing and drinking water.Joint-Free: The term "joint-free" suggests that the bottle is constructed without any visible joints or seams. This design feature can help prevent leaks and make the bottle more durable.Leak-Proof: The bottle is advertised as leak-proof meaning it is designed to prevent any water from leaking out even when the bottle is turned upside down or jostled during physical activities.Gym and Yoga Bottle: The bottle is marketed as suitable for gym and yoga activities. It implies that the bottle is portable easy to carry and can withstand the demands of an active lifestyle.1 Liter Capacity: The bottle has a capacity of 1 liter which provides ample hydration for workouts or yoga sessions without the need for frequent refills.