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Waterproof Bike Bag 25 L 900

Regular price: $44.99 Regular price:
Special product, Innovation Special product, New Release Special product, Special product, Sale

Waterproof Bike Bag 25 L 900,dark grey, photo 1 of 8

Waterproof Bike Bag 25 L 900,dark grey, photo 2 of 8

Waterproof Bike Bag 25 L 900,dark grey, photo 3 of 8

Waterproof Bike Bag 25 L 900,dark grey, photo 4 of 8

Waterproof Bike Bag 25 L 900,dark grey, photo 5 of 8

Waterproof Bike Bag 25 L 900,dark grey, photo 6 of 8

Waterproof Bike Bag 25 L 900,dark grey, photo 7 of 8

Waterproof Bike Bag 25 L 900,dark grey, photo 8 of 8
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Model: 8365213

Product Features

A photo of the Waterproof Bike Bag 25 L 900 in use

Waterproof Bike Bag 25 L 900 is designed for carrying everyday belongings on your bicycle's pannier rack.

A sturdy, practical 25-liter everyday bag for any weather conditions.


Volume: 25 liters. Max. load: 22 lbs.


Waterproof fabric, taped seams. Splash proof (IPX4).

Easy assembly/dismantling

Universal mount for pannier racks. Top/bottom adjustable attachment point.

Easy to use

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


1.7 lbs

Product Customer Reviews

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Waterproof Bike Bag 25 L 900,dark grey
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Used and damaged

I bought a Twin 900 and it is a good product. However, when my partner ordered another one for me it was not in original packaging, one of the top clips were broken and the bottom clip was missing all together. It has clearly been used and there was an old hair band in it that has been used to secure it to the pannier. Return process is vexing. They want photo of personal ID.

Good even for crazy touring

I used these panniers on a 3 weeks MTB trip in the himalayas. The pros: -Very good waterproof, for all sorts of weather, you can just leave it outside your tent also and it will stay dry despite the grass being wet in the morning -Fits well with my tubus logo classic, the lower attachments prevents the bag from moving sideways and stays in place even in rough terrain. -The bag has a high volume, so a lot of storage The cons: -The strength of the clipping looks suspicious sometimes especially when the pannier is very full, it tends to bend the back panel of the pannier and it is a bit scary. In other pannier brands , the bending is prevented with a horizontal bar acting as a support. -It could use some additional external or internal pockets for storing and sorting things. Overall, good product for the price.

Not durable and potentially dangerous

This is the third Decathlon pannier that I have tried, and none really does a good job. They all lack structure, so unless you are only intending to use a Decathlon pannier to take your dirty laundry to the cleaner, I should advise you to get a better-quality product. If you carry a couple of D locks in a Decathlon pannier, you will find that it is all too easy to find that when they move inside the pannier they send it into the spokes of your rear wheel. The "rigid" back of the pannier does nothing to prevent this, and the structureless nature of the fabric allows heavier objects to "bend" the bag around the back panel. Even something like a 500 ml bottle of water can do this if you go over a bump at anything faster than a slow crawl. The fabric of this pannier is not durable, and I can already detect signs of wear from the inside. You only get what you pay for, so consider buying a much better brand for durability and safety.

Dear Sir,
I'm sorry that you are not happy with the quality of this 25l pannier bag. Reviews in the past have generally been very positive particularly the waterproofness. When paired up with a traditional triangle rear pannier rack, the fastenings are securely and locked in place and coupled with the adjustable clip no lateral movement should take place. This item has been extensively tested over very long distances and in the harshest conditions such as transcontinental bike packing tours. Of course, if you are not happy with the item and want a refund or an exchange or the item is faulty, please feel free to return it to us with your receipt.
Peter, Cycling Manager, DECATHLON
Great bag but bottom fitting fell off

I received this bag as a Xmas present and today I finally got to use it on my commute. The bag seems pretty good (although not tested in the wet yet). This being said, on my return home the bottom attachment had come off without me knowing. Without this attachment the bag is bouncing around and surely brake the top clips very soon. Real shame, especially on the first day of use.

I'm sorry to read that the clip has come off. Please return it to us for a refund or replacement.
Peter, Cycling Manager, DECATHLON
Great little pannier

Does what it says. Not tested in full downpour yet but I’m confident it will do the job. Enough room to fit a laptop and a days work wear. Pannier fittings are adjustable and once adjusted have got a good fit on my bike - although it could be a have a bit more space to allow for short chainstays. A couple of improvements could be a reflective panel at the side or choice of brighter colour and an outside pocket for easy access for work pass etc

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Great quality bike bag

Excellent value overall

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Bike pannier

I have been using this several times a week for around a month and so far it has done the job very well. Sturdy construction and very easy to fix onto and remove from the rack. Roomy enough for a daily commute with clothes, lunch, papers, would also take a laptop with no problems. Not been tested out in heavy rain but looks like it would withstand a downpour. Only problem is the colour - would be nice to see bright fluorescent colours as well as black.

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Excellent Pannier - Highly Recommended

These are large rear panniers suitable for cycle touring (used them on the EV6 path through Germany & Austria) - one could say contain all clothes, and the other all camping equipment, excluding tent, & food. The attach at the top by two clips that lock onto the bar of the rack - & these are adjustable left/right, and to the dimensions of the rack bar. At the bottom they attach via a sliding bar - these adjust left/ right but be careful to fully screw tight or they can come off. They are 100% waterproof with 'fold over' top (we had some horrendous weather & they stood up brilliantly). They only have one small internal pocket - so to make things easier to organise you can use smaller 'dry bags' or just plastic bags. Finally one compliment to the store in Passau - I lost one of the bottom adjusting bars by not screwing it on properly and the store replaced the item there & then with no fuss - thanks guys! Overall excellent pannier at half the cost of other comparable ones (say Ortlieb) - highly recommended

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Sent the wrong size

Shipped by a 25L rather than 30L. Requested a return, no response.

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Perfect waterproof pannier bag with lots of room

I have come to expect a high quality and well designed standard from decathlon and this pannier bag exceeds expectations, it's roomy, it holds its shape well when stuffed full, it's very secure with good fittings, and waterproof, visibility is good with a reflective stripe and has a fitting for a clip on light. Well done Decathlon.

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Does the job

Big enough for my laptop and butty box. Waterproof. The fittings are quite large - probably perfect for a Decathlon rack but a little loose on mine but it is secure. You need plenty of space between the rack and pedals to allow clearance as this panier is large. the only thing that it lacks really is a shoulder strap as carrying it when full is not easy with the small strap handle at the back.

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rota en el primer uso

Los ganchos de plástico de la parte trasera son muy débiles. Se me han roto el primer día, en casa, sin siquiera salir de ruta, el plástico del que están hechos se partió por la mitad. Parace un buen producto cuando lo ves en tienda, al ser el modelo tope de gama de Decathlon en cuanto a alforjas...pero engaña. Coloqué los ganchos de ancho fijo en la barra de mi portabultos, sin forzar, entraban fácil y suave, para ver como quedan en la bici. Al sacarlos, (igual, sin forzar, solo levantando hacía arriba) uno de los ganchos se partío a la mitad. Compré 2 de estas alforjas, dinero tirado a la basura. Viendo lo endeble que es, como voy a salir de ruta metiendo peso ademá se ha roto asi de fácil??? Lo barato sale caro. No compréis alforjas con ganchos de plástico.

Sentimos mucho los problemas ocasionados con nuestro producto , te puedes pasar por una de nuestras tiendas y hacer un cambio o devolución del mismo, puede que sea un fallo puntual en el producto .
Gracias por tu comentario , atentamente para cualquier otra consulta . 

Saludos, Ruben , Monitor Pais de ciclismo ,
No están mal

Para iniciarse están bien, pero con el tiempo tiene toda la pinta de romperse, solo con mirarla... sobretodo los agarres superiores, ya me paso con la primera que compre y la tuve que cambiar.

Buen producto con una pega

Hicimos una ruta de cuatro días , los anclajes superiores a la parrilla bien pero en la parte media va un anclaje que es una Corredera para acercarlo a la parte baja de la parrilla para que no baile la bolsa. Por el movimiento se ha caído y no se puede comprar suelta la pieza. No se si me solucionarán....

Ya había comprado otra hace medio año.

Ya había comprado otra hace medio año. He notado una diferencia en el mecanismo se enganche al porta equipajes que no me gusta tanto porque no permite mover las pestañas para ajustarlas mejor.

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Additional Product Information


Main fabric

  • 100% Polyamide

Mounting system

The 2 width-adjustable hooks allow the bag to be attached to pannier racks with a tube diameter under 12 mm. An adapter insert is provided for tube diameters of 6 to 8 mm. A locking mechanism is integrated into the hook and prevents the bag from falling off unexpectedly. The adjustable lower attachment system on a rail allows the bag to be securely fastened to the pannier rack, thus improving its stability in the event of a bump or impact.


This product has a hook for attaching products from the VIOO Clip range and a rechargeable LED light that can be clipped on and off anywhere in an instant.


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.


an internal pocket closed with a rip-tab strip keeps sensitive items separate.


This bag's fastening mechanism can be repaired or replaced in our stores or by you. We offer 2 kits: - 1 with a Twist hook + triangle (item 8538530) - 1 with the bottom rail and fastener tooth (item 8538528) These kits can be ordered online.




Size Guide Visual