Vacuum technology is the staple of the Stanley br&, offering vacuum insulation a delivering unsurpassed durability & thermal performance. Vacuum insulation removes air from the gap between steel walls, sealing the vacuum in. This effectively removes the conductive path for heat loss & is a far superior form of insulation, providing thermal retention with minimal bulk. Radiant heat loss is also controlled with a copper coating on the liner.
Features:* Thermal lid* Push button lid to open/close with one hand*18/8 stainless steel* Dishwasher safe lid* Leak proof & fully packable*473ml