This 420ml cup is made of titanium material,super light and strong.It is great for camping, hiking, backpacking, and home use. Titanium cup is super light,strong and corrosion-resistant. Titanium material leaves no metallic smell or taste. Round edges for . lid and foldable handles to convenient to use. Foldable lid loop avoids your hands from scald. Suitable for camping,hiking,backpacking,fishing,etc.