Safe transport in a bag or rucksack, no leakage - neither upside down nor in a horizontal position. Leak-proof even with carbonated drinks. Vacuum-insulated, copper-coated double-wall construction. Made from 90% post-consumer recycled stainless steel. Thanks to the use of 90% PCR stainless steel material, the carbon footprint of the Shield Therm One bottles is reduced by 23% compared to the use of similar products with primary material.