Hydro Flask stainless steel insulated mug keeps coffee hot for up to six hours — soup, tea cocoa and toddies, too. Refillable, reusable and sized to kick-start your day, it has a spill-stopping insulated Press-In Lid and our TempShield™ insulation to hold the heat. Closeable Press-In Lid tames splashes, trap temps and is straw compatible TempShield®️ double-wall vacuum insulation protects temperature for hours. Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer BPA-Free Not for use on a stove, in a microwave or freezer