Ergonomic backpacks recommend from Class 3. Made of water repellent, ventilated backbone (Air Flow Max System), adjustable chest strap and padded, adjustable shoulder straps, handle on top, YKK zipper. The back of the backpack, on the inside, the side part and the bottom are padded, making the bag format, but not rigid. With a large compartment with a padded laptop holder, on both sides with mesh pockets for the water bottle. It has a zippered inner pocket + 2 pockets and 3 zippered front pockets. Its size is 450x330x240 mm. Its space 27 l. It has a load capacity of 10 kg.