Keep your favourite tea or coffee by your side at all times with this Batman Travel Mug. The 450ml (15 fl oz) double-walled travel mug comes with a black silicone sleeve featuring the Batman Its textured rubberised finish is designed for maximum grip, so youll always be ready for anything knowing your favourite brew is right on hand. Not suitable for dishwasher or microwave use. The Batman Travel Mug is great for carrying with you in your bag when travelling or commuting.