As a traveler, I need good quality back pack.After did a long research,finally I bought this. It has been a great back pack every time I use it. Its orange synthetic leather bottom,which is very good quality. We use to go trekking on mountains, I use to put on rocks,rough roads etc..The bottom is still looks new after all. We can easily to wipe with the cloth. The material used for back pack really very good quality and strong too. Some times I use for my laptop too. Very comfortable back straps and pocket in the front use for to keep mobile , important keys. Back straps are strong enough to hold the weight.There are lot of colors to choose in this brand. But I like this color very much. I am 100% recommend to a friend.