I use the Zeagle Concept II Pro and have the Escape bladder for travel (I switch them out) as Larry said his setup though a little larger would make a good travel setup. The difference is the Concept II Pro has no pockets so it would be a bit smaller with the Escape bladder than the Ranger. I have used the older Zeagle Scout and found it to be a little unstable; its tiny but very light weight.