Stainless Steel interior with Silicon seal. Leakproof/Non-Toxin/BPA free with Double Wall construction feature to keep water both thermally insulated, stays cool up to 25 hours and hot up to 13 hours.
Stainless Steel interior with Silicon seal. Leakproof/Non-Toxin/BPA free with Double Wall construction feature to keep water both thermally insulated, stays cool up to 25 hours and hot up to 13 hours.
A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings.
A vacuum flask (also known as a Dewar flask, Dewar bottle or thermos) is an insulating storage vessel that greatly lengthens the time over which its contents remain hotter or cooler than the flask's surroundings.
