Bushwhacker Mesa Insulated Trunk Bag with Padded Interior – Rear Bike Rack Pannier, Grocery Cooler, Commuter Cargo Carrier, Touring Storage, and Accessories Behind Seat

I love this bag. Zipper and seams are well constructed. Like the reflective material used on the bag. All the pockets are nice and plenty of room for typical things you would want to take on a long bike ride. A couple cold drinks fit in it nicely. The velcro attachment and strap makes it easy to install and remove quickly. I would highly recommend.

I bought this bag to bring clothes to work. My ride is 20 miles each way. I have a seat post mounted rack. It is small in size, durable and man does it hold more than I thought. I pack a belt, pair of jeans (rolled), underwear (rolled with jeans), an undershirt, a folded golf shirt and a 12 x 18 small canvas bag in the main compartment. When I get to work I put everything in the canvas bag to bring into the office as I leave the bag mounted on the rack all the time. I pack a pair of socks, a padlock for my locker at work, a thin bike lock, chap stick, deodorate, small bottle of shampoo, wallet, protein bar and a small bag of trail mix in the two side pockets. There is still room for other small items if needed like keys, spare tube, etc if you really want to pack it. My cell phone and work badge go in the top pocket. Only downer is shoes or flip flips do not fit. I leave a pair of shoes at work over the summer, not a deal breaker for me. I have a small under the seat bag for flat repair items so I do not use this bag for those.I have crashed with this on an it did not move/fall off. I do have it attached with ties and a clip though. Someone would need to cut the heavy plastic ties which would be easy with scissors but I'm not worried about that at my office. When out, say a quick stop at 7-eleven to fill up water bottles, no one can just walk up and take the bag. They would need something to cut/clip the ties with. I will just buy another bag if someone really has to steal it from me. The ties do give me that added measure of security that I will never those tit while riding and I can leave it unattended if needed. Attach the ties/clip to the back of your rack from the back loop where you would hang a tail light from.It is also some what insullated. When I pack for the ride to work I have the bike in the house over night, in the A/C. When I get to work on those 80 degree plus mornings, my clothes are not "hot" in the bag which is nice. They are more like room temp. Have not traveled with cold items in there yet. Sides of main comparement are not flimsy.I would buy another one of these if I needed another bag for any reason.

To be clear, I returned this bag the day I got it, so I cannot speak to durability. I have a very narrow Axiom Streamliner Road DLS bike rack (~2 wide) and the velcro straps are not long enough to attach to it. Make sure you have a ~6 inch wide cargo rack before grabbing this guy.PROS:-In my opinion, it is the only good-looking rear mounted cargo bag on Amazon, especially if you prefer a more classic aesthetic.-Solid construction, not floppy likes some others I have tried.CONS:-Subjective con, the straps are designed to be hidden, and they make the bag very difficult to remove. This bag is not a good option if you want to regularly unstrap it and take it with you.-Related, due to the concealable straps, they are very short, offering no wiggle room for narrower cargo frames.BLURB:This bag is hard to remove and not waterproof at all. Even with those drawbacks I was desperate to make this bag work, solely due to the aesthetic of it. Most of the bags on here are going for a weird neon modern aesthetic, this one had an awesome classic 80s-90s look to it. My bike is an 85', so it seemed like a perfect fit. Alas, the straps are too short for my thin cargo rack... However I can confirm the structure is firm, nice solid base. Tons of room, wish it could have worked!

happy

Although it's not marketed as such, it does a decent job as a cooler bag, but very limited in space. I also purchased four Hey-Trip 10X5 ice packs which are very thin. After freezing the packs and lining the bottom, sidewalls and top with them, I put two very cold(not frozen) water bottles in the middle then zipped it shut and parked the bike in full sun on an 80+ degree day. This was done at 11 am. By 5pm the cooler packs were liquid again, yet the two bottles of water were an enjoyable 38 degrees! You could probably get about 4-5 can soft drinks in there with the ice packs if you stand them up. This bag is very high quality and the attachment method is very solid on the style of rack I have. The bags on the side have plenty of room to carry two 700c tubes, a 21mm wrench, small tire patch kit, two tire changing spoons, a bike multi-tool kit, a flat blade screwdriver, and a small ratcheting 5/16 wrench. And the included carry strap is a nice bonus. I can see this bag lasting a long time.

I like this bag a lot, it holds all of my emergency tools + medical supplies in the side pockets, and I have a bunch of space in the main compartment to put whatever else I want to bring. I managed to fit an entire saddle in the main compartment, with a pair of gloves underneath it and extra room to spare. You can tell the material is high quality, it reminds me of those travel bags that people often use to carry their expensive cameras or laptops around. The reflective fabric on the side is quite potent and easily shows up in my dark garage. It's not the biggest bag out there for the price, but it's definitely a well-made product.

Amazon is flooded with cheap off brand junk. This rear cargo bike bag is an exception. Well made with a nice thick material. Good quality zippers on a nice size bag. Good velcro attaches securely. After returning another bag I'm very happy with this one and it didn't break the bank.