Roomy for travel! Eagle Creek covertible backpack. Optional back sleeve to unzip and put over the handle of your rolling luggage. Sooo many organizing pockets. Padded sleeve for your laptop/notebook. Great for a weekend getaway. TWO water bottle sleeves. You can disconnect the backpack straps and tuck them away. I don't know if I've even used it! Only thing wrong-is the interior of the fabric feels sticky due to age. Priced lower for that reason. Sold as is. Super durable Eagle Creek construction if you are going to travel intensively! Great black/gray neutral color!