1. FOLDABLE DESIGN: The mug is design to be telescoped. It is perfect for outdoor camping, hiking and travelling. The tight seal assists with avoiding leaks. It takes very little space.
2. STAINLESS STEEL: It is made of food-grade stainless steel. Healthy and easy to clean. Anti-drop, corrosion-resistant
3. KEYCHAIN: It is easy to carry with the keychain. You can hang it on your backpack or belt or anywhere you want.