The important stuff. Ditch the disposable coffee cups for this sleek and compact coffee cups from Chilly's. Perfect for those on the go mornings and help reduce environmental waste. Material: Stainless steel. Holds 340mL liquid. Double walled to maintain temperature and allows you to hold your hot drink on the go. Lids made from tritan, a BPA free and impact resistant type of plastic. Cup made from durable, high grade stainless steel. This lid will help prevent accidental spills, but is not leak proof.