Features of the bottle 1)vacuum insulation :-these pexpo range is vacuum insulated which means there is an absence of matter between the two stainless steel walls. The vacuum acts as a barrier to heat transfer so that the temperature outside of the flask doesn't affect the temperature of the contents inside the flask. 2)cold up to 24 hours | hot up to 12 hours-ideale pexpo double wall vacuum insulated bottles will keep your cold beverages cold up to 24 hours and your hot beverages hot up to 12 hours. 3)18/8 stainless steel-all of our flasks are made from 18/8 food grade stainless steel are bpa-free and highly resistant to absorbing odour taste and bacteria. Ideale pexpo are easy to clean don't have a liner to scratch and are 100 percent recyclable. 4)lifetime warranty-we guarantee every ideale pexpo against manufacturer's defects for 100 years or one lifetime whichever comes first. 5)lacquer coating -ideale pexpo offers a multitude of color choices in a durable attractive lacquer coat finish as well as the classic stainless finish. 6)sweat free-our double wall vacuum insulation prevents condensation from forming with your cold drinks and heat transfer from occurring with your hot drinks. This means that no matter the beverage inside your ideale pexpo the outside will always be comfortable and easy to hold.