18oz. Narrow Mouth Water Bottle

The Hydro Flask 10oz Water Bottle ensures that ample hydration remains close-at-hand. Made with food-grade 18/8 stainless steel, this bottle won't carry around a stank after months of use, and the small-ish size means it fits nicely in your car cup holder. Most importantly, this double-wall vacuum insulated flask keeps cold items cold for at least 24 hours, and hot items hot for twelve.