Some great jackets come in small packages. This one from Brooks is fully windproof, packs down small, and has an elastic armband so it's always close at hand.
PRC notes: The black/white version of this jacket is highly reflective. While the fabric is water resistant, in our estimation, it doesn't perform well in persistent rain. Good for intermittent showers and drizzle. Excellent wind protection.
- UPF 30
- 100% ripstop nylon
- Machine wash; tumble dry low