ace. Cross Tide s Tote Bag Rucksack Backpack Black Cross Tide s 2WAY This is a 2-way business bag that can be used as both a rucksack and a tote bag. It can store B4 size items, and has a spacious size that can also accommodate envelopes. It is also recommended for commuting by bicycle. The main storage compartment has one zippered pocket and one PC storage space. The front pocket is convenient for storing small items such as pens, pass cases, and smartphones that you want to take out quickly. Furthermore, the inside of the front flap has a pocket space covered with a resin sheet, which is useful for storing small items such as smartphones that are vulnerable to rainwater. Conversely, it's also good for storing wet umbrellas or cold plastic bottles so they don't get other things wet. The fabric on the back that touches the back is made of mesh material, which is a key point for breathability. It also has a set-up function, which is useful when traveling on business. This business bag is packed with functionality and attention to detail, following in the footsteps of "Ace Gene," the synonym for Ace's business bags. This is a used item, so please understand before purchasing.