Backpack Bagpack logo Bookbag School logo

Backpack Bagpack logo Bookbag School logo. The built-in compression function of the backpack takes use of vacuum compression method to make maximum use of the space to put in more clothes, especially those oversized or loose. When the vacuum bag is not in use, it is designed as a grooved structure, consistent with the backpack cavity, and would not occupy the space in the original backpack; When using the vacuum bag, the bag body can be stretched to a dimensional shape where twice the capacity of clothing can be packed inside; After compressed exhausted, the bag will restore into a vacuum status, the original. Model: B1-A0021. Features: Anti-Theft. Features: Waterproof. Features: Vacuum compression.