The stainless steel insulation sports water bottle is a thermos style eco-friendly water bottle with a double wall vacuum insulated technology design that make it keep hot up to 12 hours and keeps cold up to 24 hours. This vacuum flask water bottle has a smooth touch, bright look, is leakproof and is great for sports events. Capacity: 500ml. Material: Stainless Steel. Size: 25.5 x 7.3 x 5 x 4.5cm.