• Contigo byron thermal mug 470 mlsnapseal ® (sealed/spill-proof) vacuum insulated stainless steel mug /bpa-free/heat preservation up to 12 hours/ 470 ml 100% spill-proof and leak-proof design Easy to use with one hand Snapseal ® is easy to drink! Push up on the drinking handle, push down to close Vacuum insulation technology keeps your beverages hot or cold for hours Superior double-layer stainless steel construction Special area to avoid burning when drinking hot beverages Bpa-free Has a capacity of 470 ml Hot beverages are protected for 6 hours, cold drinks for 12 hours Lid part can be safely washed in the dishwasher on the top shelf