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500 Waterproof Pannier Rack Bike Bag 20L - Black

Regular price Sale price: $42.00 Sale price Regular price: $59.00

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Regular price Sale price: $42.00 Sale price Regular price: $59.00

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A photo of the 500 Waterproof Pannier Rack Bike Bag 20L - Black in use

500 Waterproof Pannier Rack Bike Bag 20L - Black
This bag is designed for carrying your everyday items on your bike's pannier rack while also keeping them dry. Waterproof version.

A bag you can use any time, regardless of the weather conditions.


Volume: 20 litres. Maximum load: 7 kg.


Waterproof fabric and seams. Splash-proof (IPX4)

Easy assembly / dismantling

Universal mount for pannier racks. Strap attachment point at the bottom.

Ease of use

Fixes onto the right or left of your bike. Carry handle.


570 g


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43 Reviews
Write review 500 Waterproof Pannier Rack Bike Bag 20L - Black
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Why did I wait so long

I put this pannier on my rack, after one year of commuting. I'm not as sweaty when I get home & I get home faster. Should have gotten one much, much sooner

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Nice product to use specially in rainy days. Simple and easy to attach rack Bike Bag. Hope someday they'll produce a double version of this product

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not waterproof

i end up throwing all my clothes into the dryer

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20 L waterproof pannier rack bike bag

Yes not bad easy to install and take out.

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Hi Jeffrey,

Thank you for taking the time to write a review on the 500 Waterproof Pannier Rack Bike Bag! I am glad that this product has been working well for you and that you love it.

At Decathlon, our mission is to make sports accessible for the many. It is our responsibility to ensure that our products are made to satisfy our users.

Personally in Decathlon, I feel that we offer a very affordable price point and reasonable quality that makes our products value for money! 

Feel free to write a review on other Decathlon products and I hope to see you in our store soon!

Meanwhile, please stay safe & stay healthy alright! (:

It's a bird, it's a plane, it's...

Firman :)

Omnichannel Sports Advisor (TRG)


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Excellent Pannier bag with good built quality

This bag had been carefully made and my wife use it during her commute to work. I take it for grocery & veg. shopping. I wish the bottom strap to be more versatile to to fit the rack. i had to make some mod to fit in my wife's bike rack.

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Seem really good value

These are for my daughter so not been used yet. They look good quality and very good value.

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Great bags

Would happily recommend these

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Not bad

When it’s strong rain inside it’s wet. So it’s not waterproof.

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Not so waterproof

I was caught in the rain and not worried about my thing inside this bag but when I unload my clothes it is wet on bottom and the bag has still traces of water inside. The second time I was caught in the rain was worse, a lot of water in the bottom. I suspect it is coming from the backside with screws. You may need to check the design and waterproofing.


Bought these for my friend's touring bike. After installing, we realised the bike bag's backing is too soft. This causes the bike bag to flap & rub against the wheels and disc brakes

Lim Kim Hock
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Hi Lim Kim Hock, 

Thank you for choosing Decathlon for your sporting needs, the 500 Waterproof Pannier Rack Bike Bag 20L - Black.

We are sorry to hear that the 500 Waterproof Pannier Rack Bike Bag 20L - Black did meet your exceptions.

At Decathlon, we continuously strive to serve you better with affordable quality products.

Your Feedback and reviews are important to us so as we can improve both services and products to meet your needs .

Looking forward to hearing from you in the future!



Stay Happy Always,

Sports Leader, Welcome Desk

Decathlon Singapore

Good but...

I love it but by the time I was trying to fit it in my bike was a nightmare. The introduction is very complicated and not well explained.


Bought one to try and subsequently bought a second. fitted to my bike rack for shopping and other errands. Very useful and so far no problems with them.

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Hi James,

It's wonderful to hear from a very satisfied customer like you. We are glad the bike bag has served you well in your daily errands, that then re-affirmed you to bought another piece too - nice!!

We are glad to make you happy, and thank you as well for coming back to us to let us know how your felt about the product. Thank you for your time and the review/feedback - they are valuable to us.

We hope to see you soon in our Store.
Meanwhile, stay safe and take care there....

Stay healthy, keep fit & stay happy always!

Sports Advisor
Decathlon Singapore

"Keeping Fit Through Sports - and Decathlon!"
perfect as always

I ordered the bag 2 weeks ago and on tuesday I was doing a shopping trip with them for the first time. They were super easy to put on, with a screwdriver I was able to adjust it so that it fits my bike perfectly. Even with maximum speed there is no risk for the bags to fall off the bike. I wish I could have bought the yellow one but sadly they were sold out. But as always i'm super Happy with the service and the product. Well done Decathlon

Great Pannier

This is a good pannier, yes it's not as sturdy as a £70 Ortlien but for the price is excellent. I've been using mince for 6 months on the daily commute and put my work rucksack into the pannier. I don't remove the pannier from the bike nad it lives quite happily there managing shopping trips for groceries or when i pop into town at the weekend. I bought a bright yellow one, the red is good. You can improve the bottom attachment by adding a few pop rivets to hold the bag to the plastic backing to make it a bit more secure. Also upgrade teh velcro strap to the hook from the 900 pannier model (see this part ) and by drilling two holes you have a much better attachment to your rack. An inexpensive £3.99 upgrade. Would i buy again, yes i would.

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Product information


Main fabric

  • 90% Polyester
  • 10% Polyurethane


This product has a hook for attaching products from the Vioo Clip range, a rechargeable LED light that can be clipped on and off anywhere in one go.


Can be mounted on the pannier rack of a folding bike so long as it is placed as far back as possible, so as not to interfere with pedalling.


This pannier rack bag meets IPX4 standard.A product with IPX4 rating means that the product is suitable for all weather conditions and resistant to water splashes coming from all directions. However, it is not resistant to immersion.


This bag's fastening mechanism can be repaired or replaced in our stores or by you.We offer a set with 1 Vario hook and 1 centre lock.This set can be ordered online using item code 8538529.

Product care.

Wash the bag with soapy water. Never use detergent, or any alcohol or product which could damage the fabric.

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