The bottle is made of pure aluminum, which makes it naturally resistant to rust, chemicals, and UV light. They are powerful and can handle high pressure and rough conditions, despite being lightweight. A special tamper-evident cap provides clear evidence if the bottle has been opened, keeping the contents safe and secure. The seamless design means you can empty them without waste. They are also 100% recyclable, making them an environmentally friendly choice. Finally, they are certified to meet the world's strictest international safety standards for shipping hazardous materials.