With the TOAKS Titanium 450ml Double Wall Cup, you can keep hot drink warm for longer time, and make it easier to hold without burning your hand. This titanium cup is lightweight and strong, and will last you for years. The handles fold away for compact storage, and its rounded bottom edges make cleaning easy. Why Titanium Cookware? Ultralight, strong, and durable. Corrosion-resistant. Leaves no metallic smell or taste. Most effective material for outdoor gear. Details Material: Titanium (Grade 1 or 2, no coating). Weight: 4.7 oz. Capacity: 15.2 oz. (450ml). Comes with a mesh storage sack. It can nest inside 750ml Pot, 850ml Pot and Wood Stove (STV-11) though it is a tight fit. It can nest 27 oz. Kleen Kanteen water bottle. Caution: Double Wall Cup should not be used for cooking.