I am looking for a bag to take on safari as my "personal item". I will use it on out international flights as a carry on and its second use will be as a day bag when we go on game drives, etc. For the flights I need something that holds a clean shirt, socks and undergarments, kindle, a guidebook, small cosmetic bag, pashmina, cell phone, water bottle, gum, tissues, compact comb, quart size bag of liquids and a deflated travel pillow. As a day bag, I need to carry a fleece, my small wallet and sunglasses, binoculars, small cosmetic pouch, sunscreen, tissues and wipes, gloves and hat and a water bottle.
I have an Id messenger that I love but I am hesitant to throw it around on the floor of a safari vehicle as I use it regularly at school and conferences. The co-pilot is very interesting to me but I think it is not quite large enough for my needs. I really prefer a messenger as I like the cross body carry but it seems that a backpack might be more practical in this situation. My concern with backpacks is my experience of one big compartment where the heavy things fall to the bottom and it is hard to access items inside. I have a couple of small daypacks that we use for hiking and it seems I can never see what is inside or find anything. I notice, however, that he Synapse has a separate bottom section and the bag seems to have a decent amount of organization. Does this make it easier to access items in the main compartment?
What do those of you with experience with the Synapse think of it's suitability for my needs?