The Ranba underbag can be attached to any backpack, but it is not compatible with a ransack.

Features of Ranba

1. Balance: The storage bag can be attached just below the school bag, so even if you store heavy items, there is less moment in the direction of the falling down, making it easy to carry around.

2. Safety surface: Since the storage bag is located at the bottom of the backpack, the user does not jump out in the left and right direction, it is possible to prevent the user from getting stuck on the surrounding buildings while in use.

3. Adjustment and age of Use: Designed to allow you to adjust the thickness of the bag itself depending on the amount of luggage (adjustable from 0.8 - 5.9 inches (2 - 15 cm)), the backpack is designed to be combined with the bag and backpack so that it can be worn even with the first grade yellow cover on.

4. Outside of school... Its hard to use just to take it to school. By attaching an optional buckle to make it suitable for outside of school.

Ranba has an optional extension buckle that can be used not only when commuting to school but also as a daily shoulder bag.If you purchase a Ranba set, we recommend buying a set for a fraction of the cost.