ROCKBROS 60L Waterproof Duffel Bag - Heavy Duty Motorcycle Dry Bag for Travel, Boating, Kayaking, Camping & Fishing - Outdoor Adventure Gear for Men & Women - Perfect for Road Trips, Beach Outings & Hiking

This is a great gear bag for storage and for luggage.I use this bag with the matching waterproof saddlebags. I bought the duffel because I liked the saddlebags so much. During riding season this bag supplements my luggage as an easily strapped top bag when required. In the off season, most of my gear fits inside for storage. There are no internal pockets or organization aides. Some people prefer this, some loathe the lack of compartments and spots to squirrel away stuff. That is not this bag's bag.I appreciate the construction and waterproofness of these roll bags. The material reminds me of heavy duty search and rescue raft rubber. I am sure that a lowside spill on gravel could possibly rub through the material but daily use, grit, and dirt does not cause any damage.I would recommend this bag in the 60L size for use as waterproof luggage while motorcycle or car camping or even boating. 90L would become unwieldy as a portable luggage but would be great for storage. I find the 60L us the perfect size for what I do without being too little to be worth using and without being too much as to be unwise to carry. The roll top is only waterproof to an extent and a large part of that extent is how full you pack the bag and how effectively you close it. You would not want to submerge it for very long, but it does perfectly fine in the rain, spray, and sun. As with my review on the saddle bags, this style of bag does not lock but it is easier to take with you so it gets a pass since it will likely not be unattended in most scenarios.One feature that deserves mention is that there is a pressure relief valve on this bag. This is especially useful if you want to compress and pack a lot of soft items because it allows you to efficiently vent the air from the bag without messing around with the closure. This also helps reaffirm that the bag is quite watertight if it requires air venting.In summary, I love this bag. Pick the size that fits your needs and get one. It is also fun to roll the top down.