Bag convinces in every respect - for my use. Due to the somewhat "smaller" size of 38x28x12 my 13 "notebook perfectly into a 17" laptop fits not (at least not under the lock). The workmanship is very good, but one look at the materials and on the label reveals: Do not wash, not in the dryer, no ironing. The strap fits on the length of her, but I had him pull a comfortable waist height to maximum length. So not much room for improvement (length). Conclusion: ideal for everyday use (laptop, books + drink or sports equipment + drink). Inside pockets well usable for smaller items if writing materials, cell phone, iPod or wallet.