1. The sports bottle is made of aluminium and retains no taste and odor from the contents of the bottle.2. The lip is made of new PP plastics, and waterproof seal is made of imported non-toxic silica gel, which is through food testing. 3. Inner coating is sterilization.4. The color for body we can change in accordance with customer”s requirement. Also customer logo printing can be silk-screen, heat transfer, laser engraving etc.5. Lightweight, streamlined to fit into any rucksack.6. We can also attach a carabiner to the bottle during production, or other rope by user after purchase. Easy to carry during travel and outdoor activity.7. Stainless steel sports bottle with same design is also available.