In very good condition.
Spec includes:
Main compartment with bladder pocket and key loop. Front zipped pocket, mesh side pockets, waist belt, chest strap, reflective strips. 15 litre capacity. Grey / Blue
As shown in following link (although this shows a slighty different blue)
http://www.sierratradingpost.com/i/82798,,_Lowe-Alpine-Wadi-15-Hydration-Pack-.html
£15 including postage.