This is a nice small bag for carrying a few items while biking. I am able to fit a small pump, a CO2 cartridge, and a bike tool. There is no room in there for a tube unless you want to carry just the tube (cause it'll take the whole bag up). Overall happy with this purchase. It will also hold my iPhone 12 Pro and keys, which is perfect for small local trails.

Such a nice product !

So far this pack has been a trusty friend on rides with lots of room for not just the basics to repair a flat, but just that little bit more space to carry tools and two CO2 inflators, three if need be. Most of all I love the instant access to the gear using the large roll-up opening that closes instantly so I can get rolling again quickly. Final cherry on top is the clip for a blinky light. This positions the light higher up so it's more visible, and cleans up the look of the seat post. Love it!!!

Difficult to attach, doesn't hold much.

Not a better quality than others, Not easy to attached to a Road Specialized bike. The only thing I liked was the color.

Fits a Gerber multi tool and other small tools. Fits great and stays in place, although I would not risk putting my wallet in it.

I bought two of these saddle bags on an out of town trip to surprise my boys with when I returned home. One boy has a Specialized bike; the other has a Trek. I thought SURELY a Specialized product would fit on a Specialized bike. The design is awkward - mostly the Velcro is not where you need it to be. It's not a good fit at all. Specialized - HELP! Can you exchange these for different bags?

This is a great quality product and will fit a multi tool , patch kit and co2. Get the bigger one if you want yo fit a tube or cliff bar but works good for small essentials.

I bought this thinking it would securely fit to the saddle on my new Stumpjumper. Wrong! It uses velcro to attach to the saddle but it's not long enough to go thru the wire frame and out the other side to attach securely. Fortunately, I also installed zip ties (not very elegant) in case the velcro failed - it did, on my first ride! Don't buy this seat pack unless you are prepared to either loose it or to jerry-rig a better attachment like I did. Ugh!

If you want a bag that won't stay in place, constantly rubs your legs and falls off your bike when going over the smallest bump, this bag is for you!