I used Dry Sacks By O.P. when I was hiking. My wife picked them up for me and I was pretty skeptical but, they work great. It's the "fold over" type and I believe there were 3 or 4 different sizes to the pack. Believe it or not, she got them Target. Search Outdoor Products on Amazon.
2013 Jayco Eagle 328 RLTS
2021 Keystone Montana 3121RL
2013 F350 6.7L 4x4 CCLB
W/Air Lift air bags (front & rear)
Equal-I-Zerô WDH & B&W Companion