Triple insulated technology – the Albor 32oz water bottle has triple insulated stainless steel vacuum technology with an inner layer of copper preventing heat transfer to the outer walls giving an additional 4 hours of hot or cold insulation over competitors.High-quality and long lasting – the Albor insulated water bottle uses the highest quality rust-resistant stainless steel and the exterior of the tumbler has a durable color coating that will not fade, peel or crack.