The Fold-A-Cup® Big opens from it’s folded position to form bowl or a large mug. It has a tried and tested folding design. The fold also ensures that it won’t drip after emptied. Ideal for saving space in your pack. With 600ml capacity, 47g weight and a folded height of 4cm this is is a universal mug perfect for lightweight use. Designed to fit The Original Fold-a-cup® in its center even when its folded. Simple, effective and renowned the world over.