I also give the SP jackets a huge thumbs up. I've been friends with Dave Morrow, the owner of SP since I started cycling. So I have never worn any other jackets! The new version has slightly thicker fabric, but still breathes well. (The older one was so light I almost thought it fell out of my pocket when I wasn't wearing it - but it was still waterproof. The newer one is slightly thicker but still folds up well.)

The jackets are light weight and made specifically for cyclists. They don't get billow-y or act as a sail like some jackets do .