This is last year's model. Based on my measurements, the pack weighs in at 40.4 oz (around 2.5 lb). It has a beefy suspension system and lots of room for the weight. Never before used, it's just been sitting in my closet for a few months. Pictures available upon request.

http://www.mspct.com/wp-content/uploads/2011/02/Flash-50.jpg

Send me an email at dg_poston at yahoo dot com.