I have a simms headwaters chest pack and purchased a fishpond vest/pack combo for trips where I needed a ton of gear and carry water+lunch. I like chest packs because they force you to go light and minimal, but having the wasatch tech vest is soooo much more comfortable for a long day of fishing. Plus I can carry my smallie streamer box and my one-two trout boxes, plus lunch, plus rain coat, plus spare gloves, plus water, plus spare rod if i wanted. Tons of room and it distributes the weight nicely. Oh, and it has a latch point to attach my net. One thing chest packs lack. I like to go light when i can(spring creek for example, i know I am only fishing scuds, PTs, midges, and the dry for the season), but being a complete tank and having the world at your finger tips isnt such a bad thing either(yough, where I could carry my 7wt with fast sink tip for fishing streamers, swap spools for a floating line, switch to a 5wt for more precise dry fishing or nymphing. This is the water where you really need it all)