This 350ml (11.8oz) reusable coffee mug is built for on-the-go. Feature our brand new triple wall vacuum insulation and Copper Lock Technology this coffee mug will keep your coffee hot for up to 8 hours or your iced coffee cold for up to 12 hours. It’s on trend, one of a kind advanced technology features a leak-proof pop up lid enabling for 360 degrees ease of drinking. It’s soft rubber base provides extra strength and durability, making it perfect for prams, and most cup holders in the car and at the gym. Simply disassemble for easy cleaning.