Double-walled stainless steel thermos drink bottle. Perfect for school and on the go and is suitable for both warm and cold drinks. It comes with a straw lid (sport lid) that is easy to open and makes spilling a thing of the past. The straw lid should only be used with cold drinks and for warm drinks we recommend the stainless steel drink bottle lid (sold separately). The stainless steel drink bottle designs coordinate with lunch boxes, lunch & snack box sets, and backpacks. Specifications: Dimensions: 2.9 x 2.9 x 7.9 inch / 7.3 x 20 x 7.3 cm Contents: 350 ml/ 11.8 Fl oz. Materials: Stainless steel. BPA, lead, and phthalate-free lid Maintenance: Hand wash and dry all parts thoroughly after every use Not suitable for hot or boiling liquids or carbonated drinks Not suitable for dishwasher, microwave, or oven