“ Paramo Windproof (Pertex) Smock. Rarely leave home on the bike without it. Bloody excellent bit of kit.”
I had one of these and then the Enduro (yes, it’s really called that) jacket version, which I’m on my second one of after almost eight years of daily commuting and most MTBing wearing out the zips and velcro (fabric is fine but repair is almost as much as a new jacket).
They’re not Pertex, it’s polyester rather than nylon, more windproof but also a bit more breathable. Very tough. But unlike most windproofs, not that light and doesn’t pack down tiny.
The current version is great for MTBing and commuting because it’s so ventable – big velcro cuffs, two torso zip vents, two sleeve zip vents. Easy to operate as you’re riding, unlike pit zips which are usually a two-handed job.