I have been using the Hyperlight Mountain Gear packs this summer and find them ideal.
Curiously, the “Expedition Pack” http://www.hyperlitemountaingear.com/packs/expedition.html is my new day-tripping, sport-boating pack for walking in to packraft down. Its big volume (4400 cu in) allows me to put in my Llama with its beefy spraydeck, thick (4 inch?) minicell foot block (a half circle that fits perfectly in the bottom of the pack), PFD, drysuit, back rest, helmet, throw bag, and 4 piece paddle as well as food and dry clothes. I had been using the Go Lite Pinnacle but its pear-shape is hard to pack. The dry-bag qualities of the Cuben fiber roll-top closure are nice, also, especially the velcro used to close it up before rolling it. Of course I used it for multiday and overnight trips too. I pulled out the stays and when I am steep creeking I wear the empty pack inside my dry suit. In otherwords the boat is completely unloaded. Forrest had a daisy chain sewn inside his and turns the pack inside out when strapping it on to prevent foot entrapment – a good idea, no?
I also used the “Windrider Pack” http://www.hyperlitemountaingear.com/packs/windrider.html during the WIlderness Classic this year via the bushwacker’s route – lots of serious mileage in Class IV and above brush carrying my Scout and drysuit (but no PFD or throwbag) and a typical Alpacka seat I velcro in as well as a Sawyer Paddle and my food and gear for the 130 mile race route. With its hip pockets, dry-bag closure, light weight and the exterior mesh pockets it was the best wilderness race pack I have ever used.