Force: Vacuumed Stainless Steel Double Wall Tumbler with Matte Black Exterior and Interchangeable Colored Silicone Bands. Push Button with "SipLock" Technology., Yellow Holds 14-ounces Vacuum Insulation Keeps Hot Liquids Hot and Cold Liquids Cold for Hours Double Wall Stainless Steel with Matte Black Finish Push Button Top with SipLock Technology Hand wash only