This 100% leak-proof water bottle holds almost 1 litre (920ml / 30oz) and features vacuum-insulated, double-wall stainless steel construction. It offers a smooth flow for spill-free hydration and a hygienic full-flip top cover for one-handed use on-the-go. The bottle keeps drinks hot for hours or icy cold for hours, maintaining their freshness and flavour. It is the perfect large yellow water bottle for fitness, gym, camping, and outdoor activities. This bottle is designed to fit wider or adjustable cup holders and external adult rucksack mesh pockets. Constructed from vacuum-insulated, pro-grade ThermoShield stainless steel, this bottle is extremely durable and built to last for years. Stainless steel is a carbon-neutral and fully recyclable material. This refillable and reusable drinks bottle is food-safe, odour-resistant, and easy to hand wash.