Hydro Flask 12oz Travel Mug The Hydro Flask 12oz travel mug stainless steel insulated mug keeps coffee hot for up to six hours — cocoa, tea and toddies, too. Refillable, reusable and sized for the perfect cup, it has a spill-stopping insulated Press-In Lid and our TempShield insulation to hold the heat.FEATURESCloseable Press-In Lid tames splashes, trap temps and is straw compatibleSoft Touch exterior for a comfortable holdTempShield double-wall vacuum insulation protects temperature for hoursMade with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transferBPA-FreeNot for use on a stove, in a microwave or freezerKeep hot liquids out of the reach of childrenSPECIFICATIONS Product Diameter: 3.53" Product Height: 4.55" Product Weight: 0.74 lb SHOP ALL HYDRO FLASK