The Purna ProteKt Windproof shell jacket is so thin you'd expect it to tear at the first brush with a prickly bush but it has proved me quite wrong. Weighing 99g including carry sack, it's designed to be donned in a flash, protecting against wind chill whether screaming along a mountain pass or dribbling through Drabsville.
Performance outerwear has long been losing its nerdy neon persona in favour of something much sleeker. Purna Mens ProteKt Windproof Technical Jacket has a timeless appeal.
Regal shades of blue or green are the alternatives should the satin black prove too staid, but be aware of the lack of reflectives.
It's a hard-shell design with a surprisingly tactile texture more commonly associated with gloves and overshoes.