* Vacuum double walled stainless steel * Keeps hot drinks hot & cold drinks cold * Double designed lid * Leak proof * Ideal for travelling, school, work & fitness Meet your ultimate beverage companion. Crafted from resilient vacuum double-walled stainless steel, it maintains the temperature of your drink, keeping your hot drinks hot & your cold drinks refreshingly chill, so you don't have to worry about your hot coffee becoming cold or your water becoming warm. Designed with a dual-purpose lid for added convenience, & rest easy knowing it's leak-proof. Embrace the versatility as you take it along for travel, school, work, & fitness adventures.