I bought this bag to wear when cycling to work. Now five months on and it is doing very well. Everything still works (zips, straps etc) and very little sign of wear. It is showerproof, a good size (can take medium sized Dell laptop easily), and has plenty of pockets and compartments. Shoulder straps are strong and comfortable. Recommended. UPDATE: Now August 2011 - still going strong. FURTHER UPDATE: June 2012 - still no sign of wear. AND AGAIN: November 2015 - amazingly this is still looking good!