B’TWIN 300 waterproof cycling jacket review

B’TWIN 300 waterproof cycling jacket is available from Decathlon and the low price tainted my first thoughts. The jacket retails at 11.99 I was thinking how could this be a good jacket for the price.

However, despite my reservations over the jacket. I went ahead with the purchase and here are my thoughts on this waterproof jacket.

Construction and design

  • Waterproof – material with sealed seams on the shoulders and armholes.
  • BREATHABILITY – Ventilation openings on the underarms and in the back.
  • VISIBILITY – Reflective inserts on the forearms.
  • POCKETS – Two secured side pockets.
  • COMPACT DESIGN – Can be folded and tucked into its inside pocket.

Sizing and style

On first inspection the jacket is very lightweight and can easily fit into the back pocket of a cycling jersey. The jacket comes in red and blue options, I tested the red version. I am a 42 chest and went for the size Large and this provided more than enough room when wearing several layers with the jacket.

Test the B’TWIN 300 WATERPROOF CYCLING JACKET in the rain and it held up well

Cycling jacket Performance

I have used the Jacket in a heavy downpour that lasted for 45 minutes and it held up well. A nice feature of the jacket is the elastic bands on the cuffs which help prevent water from coming in via the cuff and rolling down your arm, after all no one likes water creeping in.

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The jacket has 2 pockets at the front that provide enough room for a phone or a wallet which is secured with a zip. These zips are not sealed, but it will provide enough protection. Whilst the jacket is not windproof I felt it did a good job when testing it during a windy ride and out walking.

When looking at this jacket you will think about the breathability at this price point, but having used this jacket for many rides and walks along with general use its good and I didn’t feel I was hotter or clammy than normal even after a hard ride.

Test ride of the btwin 300 waterproof jacket in the rain
Test ride of the btwin 300 waterproof jacket in the rain


You can’t go wrong with this jacket when used with some warm layers underneath on a cold day. The waterproofing is good, and the breathability is very good for the price. You can get a better jacket that will offer better protection and breathability but will pay 5 times this price or maybe more.

The button line, the B’TWIN 300 waterproof cycling jacket is a bargain and is on sale at Decathlon at the moment due to it being on sale Follow this link

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B’TWIN 300 waterproof cycling jacket review
B'TWIN 300 waterproof cycling jacket Summary
At £11.99 the Btwin 300 waterproof cycling jacket is a steal. It keeps you dry in heavy downpours and has reasonable breathability. I have used this jacket for walking and cycling and occasionally just out and about. For the price point you can't go wrong
Pockets not sealed
Recommended product

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Jon Ratcliffe
I have a huge passion for technology having worked in the sector for over 18 years in a variety of roles. I cover Wearables, tech and smart home. My reviews and information will talk about how the product works in reality and not just what the marketing departments want you to think.

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