Sigg Water Bottle - Nat Yellow - .75 Liters - Case Of 6The perfect bottle for SIGG fans young and old. A CLEVER APPROACH IS WHAT GOES INTO OUR BOTTLES. LIKE OUR NEW ACTIVE TECHNOLOGY. State of the art engineering with a pressure relief valve and pre ventilation system. The new top is also leak proof even if you turn the bottle on its head which is great for all athletes, drivers and kids. With this top, having to unscrew your bottle is a thing of the past, so you can simply reach for your beverage