Using lightweight materials, it has an extremely light weight. The widened and thickened S-shaped shoulder straps effectively distribute the pressure, allowing for easy carrying even when fully loaded, and it won't cause fatigue after long-term use. 

Description: The interior of the product is divided into sections, with side waterproof pockets. Notebooks, books, water bottles, keys... All items are neatly placed in their respective positions, eliminating the need for clutter.