Safe transport in a bag or backpack, no leaks - neither upside down nor in a horizontal position, leak-proof even with carbonated drinks. Keeps liquids hot for up to 10 hours (for 1.0 liter) and cold for up to 72 hours (for 1.0 liter). Vacuum-insulated, copper-coated double-walled construction. Made from 90% post-consumer recycled stainless steel. By using 90% PCR stainless steel material, the CO2 footprint of the Shield Therm ONE bottles is reduced by 23% compared to similar products made from primary materials. After just the 16th use of the PCR stainless steel bottle, its CO2 footprint is lower than that of a PET bottle. All materials are BPA-free, and the lid protects the spout from dirt and dust. A perfect alternative to single-use bottles, designed for use and reuse over many years and recyclable (stainless steel).