40-ounce insulated stainless-steel tumbler with FreeSip spout and push-button lid: For serious hydration; durable, unique design and patented spout; convenient push-button lid for easy opening Versatile FreeSip spout lets you choose how you drink: Patented 2-in-1 FreeSip spout gives you two options when drinking; sip upright through built-in straw or swig by tilting back the spout opening Built for comfort, convenience, and clean sipping : Hygienic push-button lid keeps spout clean; double threaded lid and side handle are right-handed and left-handed friendly Keeps drinks cold 24 hours and cleans up easily: Double-wall insulation keeps water cold for up to 24 hours; the wide opening for adding ice and cleaning; base is cup holder-friendly for quick access Safe materials and easy care for everyday use: BPA, lead, and phthalate free; Lid is dishwasher safe, while the cup should be hand washed to maintain its color and finish; not for use with hot liquids