Bike Saddle Bag, Waterproof Bicycle Seat Bag, Large Capacity Cycling Pack Carry All Essentials of Riding, for Mountain & Road Bikes

Ordered this saddle bag from Amazon, arrived quickly in a pouch. This is a very stylish and efficient saddlebag. It's large enough to carry two inner tubes, a multi tool, repair kit, reading glasses and still has some more space. There is a soft divider inside to separate two sections of the bag, so items like glasses or other sensitive stuff doesn't rub against to tools and etc. Mounting it to the bicycle's seat is super easy and sits very safe and secure with the long velcro wraps around it between rails under the seat. I use this larger bag with my touring bike. I have another one of these made by another manufacturer in smaller size for my carbon road bike. I highly recommend it regardless of the bicycle.

I use it for my sunglasses, Alan, wrenches, a comb and anything small. Good price.

Capacity:I fit - 4 25 gram CO2 cartridges, 4 TPU inner tubes, 2 tire irons, 1 multi tool, and a 6 pack of patches.There's a bit of room left so, I'm sure 3 regular or light butyl tubes would fit, if 1 CO2 cartridge was removed.The above is completely over packing, but it gives you an idea of storage space.Secure fit:The Velcro closure holds securely.Out of the way:While this pack isn't exactly small, it tucks nicely under the seat.4 stars

The bag seems to be well made and is good for what it does. The zipper seems to be fairly sturdy; I hope it holds up well over time. Installation is pretty straightforward and once mounted seems to be secure to the bike. My only minor gripe is with the overall design. As you can see in the pictures, the only way to fully unzip the bag would be to loosen the strap, empty or insert contents, zip it back up, then tighten the strap again. While the strap system has sufficient velcro in place, my thought is that eventually the velcro might wear, or more likely, the plastic the strap goes thru would fail. My solution is to leave the zipper above the strap (luckily there are two zippers), so I don't have to loosen the strap for entry. That, of course, limits what you can put into the bag and makes it a little harder to get things out, but should be sufficient for my purposes.Overall, I like the bag and will continue using it, but look carefully at the placement of the zipper and see if it is suitable for your purposes.

I like saddle bags because I can pack them once and forget about them after that. Until I need whatever's inside of course. I also like them because I can treat them like jumbo wallets during the biking season. I load my saddle bag up, toss it in my backpack, in the glovebox, or on the bike-wherever I need it. I don't repack it. I make sure I have enough cash inside and that the gadgets are charged.So, on to the point: the ATOCIRCLE saddle bag seems well built. The zippers and pulls are smooth. The stitching is straight and tight. An extra, longer, seatpost strap was included. That's all good stuff. I didn't test the waterproofing. I did load my basic saddle bag stuff and the bag didn't bulge. Cool.I'm pleased. It's a saddle bag that holds stuff.

The ATOCIRCLE bike saddle bag is a game-changer for any cyclist. Its sleek design seamlessly attaches to your bike without adding unnecessary bulk. I love how it keeps my essentials secure and easily accessible during my rides. Plus, its durable construction ensures it can withstand any weather condition. It's definitely a must-have accessory for any cycling enthusiast!

I like this and it does measure out to about 1L which is a good size amongst seat bags but I wish it were larger though it is exactly as advertised. Wanting bigger is on me.Nice small mesh pocket inside to hold keys in place and stop jiggle noises.The rectangular dimensions means this is likely to hold a phone well if you don't carry your phone in a jersey pocket or another bag on the bike. My Pixel 8 fit nicely on bottom, then was covered by the internal 'tongue'. So the top 'level' could hold tube, etc though for a mtn tube the height is tight. Hence my wish for same design but perhaps in 1.5L.Good riding all.

I fully acknowledge that that there a a large population of MTBers out there that are going to say that saddle bags are out of style and tube straps are the only way to go. To that I say I have been mountain biking since the 80's and I am not a poser from Colorado. I'm old enough not to not care about what it "in", just what works. Besides it is going on an eMTB where a frame strap wouldn't work well anyway.This bag is certainly better than average, well constructed with thick material and a sturdy, water-proof zipper. It is of ample size to hold a multitool, tube, tire levers, CO2 with valve, tubeless repair and still has room for keys, phone and a snack. It holds tight under the saddle, with no sway and does not interfere with the dropper post.It doesn't beat my favorite bag (lezyne), but holds a lot more, and at a greatly lesser price. It's good for the eMTB where I am not too worried about weight. Unless you are worried about your crew being judgmental about "cursing in the 2010's" I would recommend this product.