The Owala Free Sip Stainless Steel Water Bottle - 40oz is a large water bottle for maintaining daily hydration. The stainless steel with triple layer insulation construction creates a durable bottle that keeps water nice and cold inside. The lid is where this bottle really shines, allowing for a sip from a straw or chug from the spout. Special bonus: a koala nose for anybody catching you in a chug to see.