Double-wall insulated tumbler with a secure twist-on spill-proof lid. The lid clips closed to better prevent spillages, and is manufactured without silicone for a fully recyclable mug. The tumbler is made of 100% recycled PP plastic and the lid is made of food grade PP plastic. The shades of black may vary due to the nature of the recycled material. Volume capacity is 250 ml. Supplied in a home compostable bag. Made in the UK.