1.Practical & Stable: streamlined design shows fashionable appearance. Use four Velcro straps to install, and fix the bicycle rod at four points. It is in a triangular state, stable and firm, and does not shake when riding.
2.Large-Capacity Storage Space: The compartment design inside the side pockets and the main pocket can classify and store objects for easy storage and access. Can easily store water bottles, wallets, gloves, mobile phones, etc.
3.Waterproof: Use waterproof polyester fabric and present a separate elastic drawstring rain cover, which can be used as a rain cover for a bicycle bag or as a rain cover for a helmet. You don't have to worry about traveling on rainy days.
4.Detailed Design: silver reflective logo to ensure safe riding at night. The elastic water bottle mesh bag and the top elastic drawstring protect the water bottle from falling.
5.General: This bicycle under seat bag is suitable for folding bicycles, mountain bikes road bikes and other models of bikes, suitable for various scenarios, such as commuting, cycling, etc.

P. Miller (comprador verificado) –
Roomer Thank it Looks
I got an e-bike and have a rear basket on the bike, but wanted someplace to put smaller items. This seat pack fits the bill. It’s roomier than it looks. The main compartment holds a tube and my cell phone and the side pouches hold all your flat fixing tools . The big zipper compartment also has a small pouch with a drawstring on the back side, so you can easily reach small items without futzing with a zipper.
Amazon Customer (comprador verificado) –
Needs ample space between seat and tire
It’s new so I don’t how it going to hold up but seems well made ,good materials and mounts easily under my seat
FarFlungHeel (comprador verificado) –
Useful for bike touring
I cannot speak to durability as I’ve had this only for one bike tour, but loaded to capacity for a bike tour of a few hundred miles, the seat post bag preformed well. I used it for tools, spare tubes & other random bits & bobs. The water bottle holder will only hold fairly slender bottles, but did a fine job with those.
Omar –
Rhino Baggy
I’ve attached it to my Ice Fury ❄️🔥Semi Gravel/Super Road Bike Hybrid. This bag is sturdy and holds a lot of stuff. The strap length was too long so I reduced its size. Came with a cover to protect it from water which is a nice edition. It features reflectors which will come in handy.