I like things to be able to attach things to the bottom of any bag/pack. Â I opted to use two , removable Line Loc3’s, Â from BPWD that were in my stash. Â Slid one up to the hilt of each hip belt. Â Fit like it was meant to be. Â Then used a piece of MLD’s 2.7 Pro guy line run up and over thru the two small loops at the base of the front pocket. Â Easy peasy to secure a Z-lite SOL pad. Â Worked for me. Â Added a couple grams. Â Recently did three nights toting this pack. Â Started out at 30.1# because I cached water along the way for the return loop. Â Settled in at ~20#. Â I’ve been enamored with the DD40 as a workhorse. Â But I must say, the Kakwa raises the bar a couple notches. Â How is that possible. Â Once the straps were set, I didn’t have to readjust. Â Rode with me like a dream. Â I did discover that since the sleeping bag and shelter weigh about the same and take up the same volume, Â putting them in vertically with the shelter on the water bottle side, since it’s easier to squish, made for simpler water bottle usage. Â My arms don’t bend all that well anymore. Â Kept a 500ml water bottle in each shoulder strap pocket. Â Also, did not get that shoulder blade area pain with this pack. Â I’m in the early sixties, buck-seventy weight, 5’10” because of slouching, below average fitness. Â I’ve been carrying pretty much the same items for a long long time and using this pack made the trip pleasurable. Â Just some thoughts. Â ymmv. Â ~RL