Although my initial delivery of this product arrived with damage, a replacement bag was quickly sent with no questions asked. I have been preparing for months for a trip into the mountain states and I wanted to take along all the new camera gadgetry with which I had rewarded myself over the holidays. I spent hours reading reviews and watching video demonstrations of many, many different products and designs. I chose this bag primarily for the lengthy list of convenient features at a decent price (at least on Amazon). It was important to me that the bag could carry in a secure space a lot of odds and ends, accessories, cleaning products etc, in addition to having sufficient well padded and protected room for a camera with a 18mm-200mm zoom, one extra 50mm for portraits. It was critical that the bag have separate protection from rain and fit within the ever shrinking airline carryon bags sizes. No way am I going to let anyone but me touch my equipment. I love how the rear has a unique honeycomb padding which lifts the bag it a bit away from your back to allow air to circulate. It has accomodations for a tripod, or waterbottle and it can be manuevered around to access the main contents without having to take the bag off. Overall appears to be solidly contructed. OK I leave on the trip tomorrow. will update review after an in the field test.