One litre is a convenient size for a water bottle, providing an ample amount of liquid to keep you hydrated throughout the day without being excessively bulky. Whether you’re heading to the gym, embarking on a hiking adventure, or simply commuting to work, a 1-litre glass water bottle is easily portable. Many models are designed with durable features, such as silicone sleeves, to prevent breakage, while some come with built-in handles or straps for easy carrying.