I looked long and hard for saddlebags for my 2004 Black Bonneville. I wanted something 100% waterproof that would work with (or at least not take away from) the look of my bike. Although I like the look of the traditional leather bags you sometimes see on Triumphs, I was worried about they not performing well in rain. I also didn't want anything that looked like suitcases attached to the bike. I am really happy with these bags. They feel secure on the bike without additional supports or panier frames and hold a fair amount of stuff. The low profile keeps them well above the exhaust pipes and they sit neatly against the seat. I like how utilitarian they are: form following function. (Posted on 9/6/14)
I bought these bags to supplement my Kreiga US40. They fit easily and were secure on my Ninja 650R even at interstate speeds for 500 mile days. They didn't interfere with use of the US40. They hold a lot, and the length allows for a sportcoat to fit rolled up so it won't wrinkle. I have not been provided with an opportunity to test the waterproofing, but I'm not sad about that.
Drawbacks are that they might rub on the paint if not very tight; they might loosen up slightly after some distance, but I never found more than about 1/4" of play in 100 miles; and I don't care for the muddy knobbie tire track graphic, but its fairly subtle. (Posted on 8/9/12)