This 20oz tumbler allows you to sip in Style.  Skinny Tumbler is a 20oz double wall vacuum insulated travel tumbler made from 100% BPA free 18/8 stainless steel with a powder-coated finish that protects against chips and scratches. Copper Vacuum insulation keeps drinks cold for 24hrs and hot for 12 hours. The vacuum insulation ensures that your drinks remain fresh and retain desired temperatures (~24hrs). Comes with a clear PP lid and matching coloured straw.