1602M Black Manta X2 Magnetic Tank Bag – Water-Resistant, Tear-Resistant, Industrial Grade Ballistic Nylon with Anti-Scratch Rubberized Polymer Bottom, Super Strong Neodymium Magnets

Perfect sized bag for what I needed. It even looks nice! In the main compartment I can fit my insurance docs, the waterproof liner for my jacket, disc lock, wallet, phone and keys with a little extra space. I also managed to fit my Nalgene in there instead of the jacket liner, but the zipper was a little strained and I wouldn’t recommend it. Maybe it would work on a bigger, flatter tank. The mesh outer pocket could hold a multi-tool. I managed to fit my phone in there but didn’t find it useful because I couldn’t really see the screen. The bottom outer pocket could fit keys or small snacks.It took some playing around with the positioning of the magnet flaps to make the bag feel properly seated on the Ninja 400 tank, but once set it doesn’t budge. The magnets are very strong. The bag was not affected at all by highway speeds (70mph). It does slightly block my access to the ignition switch, but again, it’s a fairly small tank.One downside I found: It doesnt come with a rain cover and there is no option to buy one. Maybe it’s too small for that, but having the option to waterproof it would have been nice. It does feel water-resistant just from the textile materials they used, but I don’t plan to trust it in a downpour.Build quality feels solid and I expect it to last a good while. My bag sadly arrived without a shoulder strap, which had been a big draw for me. A quick call to Chase Harper customer service and they shipped one out to me at no extra charge. I’m very impressed so far.