Warmer temps would be pushing the comfort range of the jacket given sustained hard exertion. ![]() Colder temps would allow for a wider range of layers. The Cloudburst performed great with a lightweight short sleeve merino jersey at 55F/13C. Of course, breathability and comfort are dependent on the air temp and also on what other layer(s) you choose to wear. The jacket really shines in rolling terrain where the efforts are less sustained or you’re moving faster and creating better air circulation. It’s hard to validate any technical breathability specs, but I can confirm that it does a solid job of holding off shirt-soaking sweat during longer (30+minute) climbing efforts with temps in the low 50’s Fahrenheit (10-12 degrees Celsius). Showers Pass calls the fabric 3-layer eliteAIR™ with a rating of 10.2k / 43k. On the bike, the Cloudburst rain jacket does indeed get high marks for breathability. Even if it’s half as breathable as the 43k number suggests, it’s gonna be better than most other rain jackets. Waterproof, breathable jackets are far better at sealing out water than they are at allowing the body to breathe, so I was intrigued when I read the high breathability rating of the Showers Pass Cloudburst. Where most rain jackets fall short is when looking at breathability claims. It’s rare that a fully seam taped waterproof, breathable jacket doesn’t live up to its waterproof claims, and the Cloudburst has proven to be thoroughly waterproof for cycling in the rain. ![]() The Cloudburst has a 43K breathability rating. For breathability, 10k is ok for casual efforts, while being more active requires a rating more along the lines of 15-25k. In general, a 10k waterproof rating is considered pretty good for extended rain exposure, and 20k is considered excellent. The higher the second number, the more breathable. Without getting more technical about how it’s all measured, the higher the first number, the more waterproof. The basic standard for rating a jacket’s waterproofing and breathability uses two numbers like 10,000/5,000 (10k/5k) or 20,000/10,000 (20k/10k) to describe the waterproofness and air permeability (breathability) of the membrane. In most cases, this means three layers: an outer layer (shell), a waterproof and breathable layer (membrane) and a backing (lining) of some sort on the inside. Waterproof, breathable fabrics are built as laminates. But what really sets it apart from other rain jackets is just how breathable it is. It uses a lightweight three-layer waterproof, breathable fabric that’s full of stretch and sports a soft, non-rain-jacket-like feel. The Showers Pass Cloudburst jacket is made for the latter - pedaling for extended periods in the rain. It’s one thing to throw on a lightweight rain shell to dodge a brief shower, and it’s a whole different game when you need to wear a full on waterproof, breathable jacket for an extended wet ride. Riding a bike with any real effort puts waterproof, breathable claims to a serious test. We’ve all heard the phrase “There’s no such thing as bad weather, just bad clothing.” And of all the ways to endure bad weather, few avtivities highlight bad clothing as quickly as cycling in the rain. You may have to select a menu option or click a button.Showers Pass Cloudburst Jacket $190 Cloudburst Rain Jacket Review Follow the instructions for disabling the ad blocker on the site you’re viewing.You may have more than one ad-blocker installed. You’ll usually find this icon in the upper right-hand corner of your screen. ![]() ![]()
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