Do not buy this pack if you will be using it to carry books. After just over 30 days of use (5x/week) or approximately 25 daily uses, the shoulder strap stitching ripped out where it attaches to the back of the pack. I could not return it to Amazon since it was more than 30 days, so I am returning it to High Sierra. They say they will either repair or replace it, but I doubt if it would hold up if they repair it. After this pack failed, I visually compared it with another High Sierra pack (High Sierra Swerve) that we own and also use to carry books that is now over 2 years old. The Swerve is constructed much better and is heavier duty, and it also appears to be less expensive than the Spire. The Swerve has held up well, and is still going strong! I am going to request that they send us a Swerve in lieu of repairing the Spire.
