The RHINOSHIELD AquaStand Stainless Steel variant features a vacuum double-layer construction, providing excellent insulation for both hot and cold beverages. After 8 hours, hot drinks will still maintain the warm temperature, while cold drinks will stay refreshingly cool, allowing you to enjoy your beverages at the desired temperature for an extended period of time. Additionally, this bottle prevents condensation on the exterior and eliminates the issue of the bottle becoming too hot to handle or carry.