I just watched this review of the 5.11 All Hazards Prime and thought the reviewer did a very good job in case anyone was looking at this item
I have used this bag for close to two years now and have been extremely happy with its durability, comfort and organizational set up (Velcro interior pouches described in the review are a great convenience). I have used it primarily for air travel and have been able to fit it under the seat in front of me in a full sized jet.
Hi visibility orange interior is also a nice feature. I would like to think I would never have to use it in a rescue situation but it also makes it easier to see various items in a low light situation.
It does not look particularly over sized and yet it holds a tremendous amount. The padded hydration compartment in the back is also perfect for carrying an iPad or laptop.