Introducing Our Double Wall Stainless Steel Flask, Designed For Both Durability And Performance. Crafted From Premium 18/8 (304) Stainless Steel, This Flask Is Bpa-Free, Ensuring Your Drinks Remain Pure, Natural, And Odor-Free. The Vacuum Insulation Creates An Airless Space Between The Two Walls, Virtually Eliminating Temperature Change And Convection, Keeping Your Beverages Hot Or Cold For Extended Periods. The Flask Comes Beautifully Packaged With Two Steel Cups, Making It Perfect For Sharing. Available In Assorted Colors, This High-Quality Flask Is The Ideal Companion For Any Adventure Or Everyday Use.