Warm tips:
1. Please soak the water bladder for an hour in the warm salt water of approx. 30-40 degrees Celsius and then clean it before use.
2. The temperature of the water should be between -20 and 50 degrees Celsius. The bite valve of the hydration bladder cannot absorb juice, milk, soft drink, liquor, etc.
3. Avoid contact with extreme heat/cold, harsh chemicals, UV light and sharp objects, these elements damage the hydration pack.