ThermoFlask 40oz Stainless Steel Insulated Water Bottles keep you hydrated through any workout or adventure. This 2-pack includes both chug-style and straw lids, giving you versatile drinking options. Double-wall vacuum insulation keeps liquids ice cold for up to 24 hours or piping hot for up to 12 hours, while the sweat-free exterior prevents condensation. Made from premium 18/8 food-grade stainless steel, these bottles are durable, BPA-free, and dishwasher safe.

Each bottle features an easy-carry loop handle for convenient transport and attachment to backpacks. The universal lid design fits all wide-mouth ThermoFlask bottles from 14oz to 64oz. The leak-proof construction with removable gaskets ensures a spill-free experience whether the bottle is upright or lying down. A durable powder coat finish provides extra protection against scratches and dings.

ThermoFlask is a brand by Takeya USA, a company founded in 2008 that combines Japanese craftsmanship heritage with California style. The bottles are backed by a limited lifetime warranty for guaranteed durability and quality.