Very well made, excellent workmanship. Love the blue color, and reflective touches provide a bit of added safety. This pack has an amazing amount of storage space and organization for this type of product! The "open top" adjustable outer layer is large enough to hold a light jacket or other clothing items, and adjustable straps keep the pack and contents secured close to the body to avoid bouncing/swaying etc. Of course the water bladder is easy to fill, secure into the pack and so on, and NEVER imparts funky or "plastic" odor or taste to the water! I especially appreciate the bite valve cover that's attached to the tubing, so I don't have to worry about contamination when setting the pack down. The small stretchy pockets on the "wings" of the hip belt are a great place to carry energy gels/bars for quick access "on the go". And the little clip-on multi-tool is a delightful surprise! It's nicely finished (unlike sharp and/or uneven edges of many poorly-made tools of this type) isn't bulky and is reasonably light-weight, especially for the number of tools/features. Overall, this hydration pack is a very well-thought-out design for a variety of recreational activities year-round, by switching to insulated tubing for below freezing conditions.