This Top-Tube bag has been mounted on my gravel bike for several months. I'm lucky that my frame provides the necessary screws on the top tube. With these, this bag is bombproof. It has enough space to carry a smartphone (Iphone 13 Pro), keys, a small 10,000 mAh power bank or a lock. On my wife's bike, which unfortunately has no holes, the connection with the straps holds well, but it tends to wobble a little more, which is understandable. What I particularly like is the small front opening through which I can pull a cable to charge my speedometer or lamp while driving. (power bank provided) If you have the right holes, this bag is an absolute recommendation.

Ideally there would have been more holes to attach it more easily to any bike. I considered returning it because it didn't fit well on my frame, but ultimately I got used to having little space between the bag and the saddle. It resists the rain as expected, and I have enough to take with me for my outings of more than 50 kilometers.

Excellent bag for carrying your phone and a few gels or energy bars. Easy to access even while driving. Does not move even when engaged in gravel. Very good product.

I am very satisfied with this product. The opening is much more practical than those with a zipper. The fixings do their job as expected even without using the 2 fixing screws.

so practical, waterproof, this product is great and much cheaper than some big brands

Exactly someone described in various reviews

Very well thought out

excellent product at a good price.

For a long time I was looking for a pannier bolted to the upper frame of my bike. I focused on 100% waterproofness and stiffness. I found it at a very reasonable price (compared to the competition) in Decathlon :) It wasn't easy to buy it due to low availability, but it was worth the wait! At first I was skeptical about the magnetic closure, but after a few kilometers I appreciated the speed of opening, reaching for the phone, gel and quick closure, which even on mega potholes on a rocky descent never unfastened despite the things flying inside! If you expect pockets inside and outside, you will not find them in this product. Probably due to the type of material from which the pannier is made. However, we have guarantees of waterproofness, which is more important for my way of using this product. It is not a product for everything, what is for everything is for nothing. It just works and does its job. In addition, it seems to be a solid product that I will use for many years!

Thanks to the rubber bands, it doesn't even move and holds perfectly.

Screwed to the frame. Does not move and the lid stays closed.

If there are 2 screws on the upper tube of your fender, I definitely recommend that you fix them with them! I don't have experience with the straps, but they are concrete-proof when unscrewed. It comfortably fits keys and a phone, maybe an oat bar, a power bank, or a bag of gummies. Anything that needs to be on hand right away. It's very useful and its magnetically closed top is concrete-proof. It doesn't open by accident. Absolutely worth the price!