To clarify, Polo produces this backpack in two sizes, 28 and 16 liters. If you want to go on trips for days, get the 28-liter one. If you want it for a one-day excursion or a walk, get the 16-liter one.
I got the 16-liter one after comparing both up close. The larger one has double the space compared to the smaller one, but for the use I wanted it for, the smaller one was more than enough! It has many pockets, and inside the pockets, there are other pockets, which is very convenient for organizing things inside the bag without them being on top of each other. The quality of construction seems to be good, although time will show. I believe it's worth the money

This specific product is not suitable for travel or any activity. It has absolutely no relation to the images. I doubt that it can hold the advertised 18 liters. The bag is very small and expensive for its size, even if it is Polo. Immediate return