Super lightweight, windproof, packs into it's own pocket with a carabiner loop so it's perfect to take on the back of my harness when multi-pitch climbing in case it get's nippy higher up without adding weight/bulk.
Great lightweight running jacket
This is a great jacket - nice, light, windproof and shower proof. Packs down into a tiny bag so I am much more likely to take it with me on long runs which I was loathe to do with bulkier jackets. Got it in the sale too so good value.