12oz (340ml) stainless steal travel cup by Circular&Co. Made using 90% post consumer wate recycled stainless steal. Locking lid, keeps drinks hot for 6 hours (although I use one at markets and my coffee is usually still hot after 8!) , drink 360, 100% recyclable (but designed for 10 years of use).
 
Dishwasher safe (ensure lid is in open position - top shelf only), BPA & melamine free.