This is great bag in great shape, save for a bit of dis colorization on the top most zipper pocket. Tiny bit of sand I couldn’t get 100% out in the hydration pocket. All zippers and clasps work great. A small amount of stitching missing on one of the mesh water bottle side pockets. This puppy can hold a LOT of stuff. I picked up these following specs on Amazon:

Amazon Product Description:

The multi-use JanSport Odyssey 38 Technical Freedom daypack features comfortable S-curved Airlift shoulder straps and moisture-wicking Airvent mesh to keep you going all day long. It has a hydration sleeve with an exit for a drink tube and a toggle for hanging optional hydration reservoirs. The frame sheet and aluminum stay provide sophisticated suspension and support. Other features include a removable sternum strap, a V-Loft security pocket for quick access to valuable items, mesh water bottle pockets, and a #10 main zipper with silent zipper pulls. It has a padded hipbelt that helps distribute weight proportionally throughout the body and tucks away behind the back when not needed. The ergodynamic, S-curved Airlift straps with Gelastic Gellycomb relieve stress from your shoulders, and are shaped to contour the natural shape of your upper torso. They disperse the weight across your back and increase air circulation. Specifications:

Capacity: 2350 cubic inches (38 liters)

Weight: 3 pounds, 10 ounces

Dimensions: 19.5 x 13.5 x 12 inches

Fabric: 450 denier ripstop/420 denier packcloth/1680 ballistics bottom