Designed for drinking This is not a redesign, it’s an evolution. The Series 2 range has been systematically engineered to deliver an unprecedented drinking experience. Still keeping your hot drinks hot for up to 4 hours.   Double-walled & secure sipping The Series 2 Coffee Cup leaves no detail behind. Featuring a rotating lock mechanism for secure sipping and double-walled technology to protect your hands from the heat, this is truly considered design that takes your on-the-go coffee to new heights.