Protection: The outer cover provides an extra layer of protection to the contents of the bottle. It acts as a barrier against external factors such as sunlight, moisture, and environmental damages, thus ensuring the quality and integrity of the product stored inside.
Insulation: The outer cover can provide insulation properties, which are particularly beneficial for products that need to maintain a specific temperature, such as pharmaceuticals, food, and beverages.
Enhanced durability: The added layer of the outer cover increases the overall strength and durability of the bottle, making it more resistant to impacts, punctures, and breakages.
