Item Purchased for 5'7", 135 lb. female for overseas trip. Worked great. Very light weight. Lots of pockets and compartments. Packed 3 pairs of jeans, dress slacks, 3 long sleeved shirts, 2 short sleeved shirts, jammies, 8 pairs of socks and undies and a pair of shoes. I still had room for a guide book, Pencil bag, makeup bag, toothbrush, hairbrush, mp3 player and charger, umbrella and field journal. Clipped camera bag and small binocular bag to fasteners. Also had a coat fastened to it! And it wasn't too heavy to carry all over Switzerland.
PROS: light weight, tons of space, great fabric and stitching, chest and waist strap, 2 deep side pockets for h2o bottles or small umbrella
CONS: never needed the build in whistle, but never could get it to work
I would purchase again and have bragged about it to family and friends. Buying another as a gift!