I was given the Deuter Air Contact Lite 45 + 10 SL women's backpack from Backcountry.com, but this review is my personal opinion. I received the Graphite-Black color. The color is similar to the picture and the pink/maroon color accents break it up a bit. The materials are high quality with nice thick, but not too bulky padding on the straps. The pack is lightweight and Deuter's Vari Quick System makes it easy to get a proper fit. I am 5'6" and 120 lbs. Loaded up with 20 pounds, I found the pack comfortable and easy to carry particularly with the padded shoulder and hip straps. It is easy to stand upright with good posture rather than the usual hunched forward walking that ends up happening with most packs. I assume this is because of Deuter's " X-Frame" and the additional adjustments that can be made to get the weight of the pack off your shoulders and more evenly distributed. The aircontact system works well and my back did not get hot and sweaty. The hip belt pockets are actually of a decent size so you can fit your phone without a struggle and easily pop it out for photos. 5 minutes into one of the hikes one of my kids needed to take off a jacket and easily shoved it into the external pouch. The side pockets fit variable size water bottles and are secure for snacks and other things you want handy. Even when the pack is not full, it does not feel too large or bulky. I was able to fit everything for a week long trip to Belize using packing cubes and had plenty of room for travel size swim fins and mask and snorkel. There are a lot of other features that I have yet to use such as the hiking pole attachments, helmet holder and hydration pocket. As for cons, the adjustment webbing straps for the padded hip belt are really, really long. The extra webbing hung down to my knees once I had the waist belt tightened. It would also be great if it came with an integrated rain cover but that has to be purchased separately. The Deuter Air Contact Lite 45 + 10 SL is a HUGE improvement for me in comfort and function than any previous pack I have used. Since it is lightweight and comfortable, it will get much more use for even short hikes when you need only a few items.