I have an online business in the states & I've come to realize that living there is nothing but a waste of money. I'm literally saving money traveling, especially third world countries. I just need a laptop, a few personal belongings & clothing - the road is my oyster.I have a 15" MacBook but this thing will fit up to 17", I keep my laptop in a protective sleeve so it actually works out. They've put a lot of detail into the bag. There are small pockets on bottom/rear, where the back straps an be stored when not in use (becomes a suitcase). Speaking of a suitcase, the backpack opens up like one in the middle, so you can open it completely up & have access to everything inside on a flat surface. It's much easier to pack it flat than having to stuff everything from the top like a normal backpack. The back (goes against your back) & the straps are padded, necessary for a backpack that can get to such size/weight. It expands about 2+" like a real suitcase, it's nice to get to your AirBnB or Hostel & use it as a smaller version locally.Layout - Front = Accessories + Small Pockets, Middle = Opens up to main storage space like a suitcase, Rear = Laptop pocket + other. The middle "clothing" space is where it is expandable. You can not use it & have the backpack as a regular backpack for laptop, accessories & other things. You can open it up to make the middle a "suitcase". 3 ways to carry it - Backpack, top handle & side handle (like briefcase).The bag is well made, the padding is there. I can't confidently speak about durability just yet but I will update this review in a month with a final word on the matter. It is stitched & reinforced well, they didn't cheap out on the zippers either. It's a large bag & could be sufficient to lightly travel around the world. I don't have experience how Airlines will look at this Backpack, it might be large enough to be considered a Carry On, otherwise it would be great if it was considered a handbag/backpack. This way you can do a carry on suitcase & this backpack, which would be sufficient for any light traveler on the go.I've had this bag for about a month now. It's pretty much all I could ask for in a laptop bag. One compartment can hold a laptop and a tablet. The middle can hold a change of clothes. Another holds my documents, pens, and other items. The outside pockets are roomy. What I really like about this bag is that it holds it's shape. It doesn't flop around like a typical backpack. One would think that all this capacity would make the bag heavy even when empty, but it's remarkably light. We'll see how this pack performs after six months, but I'm optimistic. All in all, a good price for a great bag!Update: Taking this bag on its first interstate trip. Two laptops, one tablet, electricals, two hardcover books, plenty of room left for a large scarf or light sweater. When it's that full, the chest strap helps the entire rig remain centered on the body. Seriously one of the best laptop backpacks I've had so far!Recently I need to do some short term trips, each trip took me 2~3 days. It is inconvenient to bring a backpack and a carry on luggage together.While looking around in amazon and some other web sites, I found this backpack.It is large enough to carry two days clothes and a 15" laptop. It is also suitable for daily commute to office. I can even put my another 17" laptop in it when I go to office every day.The quality is excellent and the zippers are easy to open and close.The coolest design: the straps can be tighten and you can convert the backpack into a handbag :o)I really like this bag. It's very stylish, high quality and reasonably priced. It has many easy and useful pockets and compartments. This is the perfect bag for short getawaysand for the business traveler that makes frequent business trips with multiple electronic devices. I loved this bag so much that I bought 4 as gifts for my groomsmen.Can’t find another bag that’s so roomy and so elegant in design. You can put two 15” laptops plus 3 days clothings in it without any effort and you still look great carrying it around.Very strong and lots of compartments to store materials for work, camping or any travel purposes!really good qualityVery descent-looking and functional.