The Swig 18OZ Travel Mug Mermazing is the perfect travel companion that features the triple insulation technology that keeps drinks cold up to 9 hours and hot up to 3 hours. The dishwasher safe cup is slip free, scratch free and noise free silicone base. It includes BPA free lid with removable slider for cleaning. It is built with 5mm 304-18/8 stainless steel and is condensation free and non-breakable. It measures 5 x 5.25 inches. It does not include a reusable straw.