The Rapha Pro Team Lightweight Wind Jacket II is a premium packable wind shell designed for cold starts, and chilly descents. At 125g on our scales, it is one of the lightest shells in the category, and its best trick is staying breathable long after comparable jackets have turned clammy.
Held in the hand, the jacket feels almost insubstantial. Pulling it on at the start of a ride in 9–10°C and windy conditions, some wind came through immediately. For the first few minutes, it felt like it wasn't providing enough protection. That changed once effort levels rose. The slight wind ingress is part of the thermal balance: it prevents sweat from building up too quickly, which is the real enemy on a hard start when you know you'll be peeling the jacket off within 30 minutes.
Riding for over an hour, the jacket remained noticeably more breathable than other small packable shells I've used, where clamminess sets in fast. The fabric is stretchy and sits close enough to feel like a second skin rather than a loose layer catching air. Seams are flat-stitched and feel robust despite the minimal weight.
Packability is excellent. The jacket compresses into a jersey pocket and stays there without any bulk worth noticing. That makes it genuinely useful as a just-in-case layer. Stash it at the start, pull it out for a descent or an exposed road, then stash it again.
I also tested it in very light drizzle. For about 20 minutes, it kept water off effectively. Beyond that, or in anything heavier, you'll want a proper rain shell. Rapha doesn't claim waterproofing so its not really a fair test but its nice to know it will give you some protection.
Sizing runs small, and not by a little
The biggest caveat is fit. I'm 1.89m and 81kg, normally a medium or large across most brands. I had to test an extra large here. Even then, the fit only felt adequate, with some areas where it could have been tighter while the arms could have been longer. I do have extra long arms though so its rare to find a long sleeve that fits well. Riders between sizes should expect to go up at least one, possibly two sizes. Long-armed riders should be especially cautious.
In the broader category, the Assos Mille GT C2 Wind Jacket occupies similar premium territory with a compact, close-fitting design and light rain resistance from its DWR coating. The Castelli Squadra Stretch remains a strong mid-price benchmark with added stretch panels and good packability. The Rapha distinguishes itself on breathability during sustained effort, which is where many wind shells fall short.
After initially being unsure, I'm now convinced that when heading out for rides in Spring or Autumn I'll be leaving the house wearing this, even if its just for the first 15 minutes. There's really no downside.
The Rapha Pro Team Lightweight Wind Jacket II is best suited to the road rider who wants a minimal shell for hard rides and climbing days, and who accepts a close cut and premium positioning. The apparent flimsiness is the point, and it justifies its pocket space.
