I have had this pack in grey for over a year now and used it on numerous short business trips within Europe as well as for day hikes and carrying the weekly shop home from the supermarket. It has fit the bill for all these tasks well. I selected this pack because it was one of the largest backpacks I knew I could bring as carry on with budget airlines (think Easyjet, etc.). I have flown with it at 15-20 times and never had any problems with it being too large for carry on size. I find it easy to pack for traveling or hiking. The small waterproof pouch is great for passport and liquids at the airport (no leaking!) and it is fairly secure once the straps are buckled across it. The zips are super sturdy. The one downside is that although the back is padded and somewhat aerated, you will still sweat if you're carrying this pack a long way or in warm weather - I suspect all packs would have this issue though. The pack still looks in good condition although it's been treated pretty hard while traveling and I've been using it daily for walk commuting for the past couple of months. I am a 5'5" medium frame female (size 8) and purchased the size S/M which fits me well. I would definitely purchase this pack again.