WYSIWYG, these are quality bags and one year on are still holding up great, with two caveats. We get a LOT of sun here in Las Vegas, and they're starting to turn brown rather than black. Also more an annoyance than anything else, but these bags are both the same size. They were shipped to me one inside the other! The one they crammed inside the other has always been a bit lopsided, and there's nothing I can do about that. For the most part though they're great!
The top velcro straps were not nearly long enough to fit across my Africa Twin with pannier mounts, so I had to cut them off and fabricate brackets (drilling holes through the bags) to make them fit. Not the bags' fault, I don't think they were meant for this application. Just know they're not designed for a pannier rack, but for laying over the back seat of a more standard bike.

The Chase Harper USA 3550 Aeropac II Saddle Bags are more roomy than most hard leather bags with each bag holding 20 liters. This is partly due to their rectangular shape instead of the common slanted shape of most bags. And though the bags are made of ballistic nylon, each bag has a thermo-plastic insert that makes the bags sturdy with a solid bottom and keeps the shape of the bags permanent. Made out of ballistic nylon they are strong and will last for several years. They are water resistant, but in heavy rain, do need a water proof covering (which unfortunately is not included). They are easy to put on and take off which I greatly appreciate as I only use them when needed for trips or shopping (My 51 liter Tail Top Case is always on and meets most needs), The piping strips shine out brightly. They also have front and back securing buckle straps that help secure the bags and provide a quick release to take the bags off. The top opening has double zippers that allow a small luggage lock to help secure your belongings. The over-the- fender velcro straps firmly hold the bags, no worries of them coming loose. Some reviewers mention that their bags have faided/turned colors, but that can easily be taken care of with products such as Rit's Back-To-Black dye. Yes, they are not as stylish as leather saddle bags; on the other hand they are [1] way less expensive, [2] hold more than most other saddle bags, [3] are distinctly lighter and [4] can be quickly removed and secured in your motel room, etc. These bags are well worth their price.

I attached the rear retainer loop straps to my rear turn signals. After searching for somewhere to attach the front loops, I ended up removing my seat and after some trial and error I ended up attaching them to the frame where the seat bracket slides into, right behind the gas tank. I tightened everything up with the straps and took the bike for a ride to make sure the bags held up OK in the wind - they did. They seem like nice bags and time will tell if they hold up for the long haul. Lots of room and much better than spending hundreds on other bags.

The bags are great. Unlike some canvass bags that have thin cheap that can kinda sorta keep a shape, these things have a ridged hard plastic liner that ensures it keeps a square shape with some room to stretch of need be. The bungee d-rings also make for a great improvised strap for thinner seats of the Velcro isn't able to shrink down small enough. The only thing is you'll wanna make sure these thing are pretty secure and to evenly distribute the weight because they will slide one way or the other if you put too much weight on one side, so be careful not to let them droop too close to your tires if you don't have a rear fender like my bike.

Seems to be a high quality item. It needs to have the support of a rear fender or some kind of structure to keep the bottom from folding in on the rear tire. It didn't work on my Yamaha R3 with a TST rear fender delete. I probably could have made a very simple structure out of a few dowels or angle iron but didn't have time before my trip. Maybe another time or another bike, I'd definitely try it again if a need comes up.