Promotional Sagaform Loke Travel Mug Big 400ml Loke, is a fantastic double wall mug that many people love. Not only because of its design and leak-proof construction, but also because it is a perfect alternative to paper or plastic cups. The large mug has a capacity of 400ml. The mug has double walls to keep the drink warm for longer. But best of all, there's no leakage thanks to a smart locking feature.