This is one of my favorite items of clothing. It's…
Fabric: Breathable ripstop polyester with a DWR coating
Price Paid: $109
This is one of my favorite items of clothing. It's very water resistant, breathable and stuffs into its own tiny chest pocket. It's very well designed as minimalist protection with velcro closures at the sleeves and a drawstring closure at the hem. I wear it running on rainy days and stuff it in my CamelBak when I go mountain biking. Now I don't get cold and wet!
I'd pack something more substantial (with a hood) for a full on backcountry trip or when I know it's really stormy, but for high exertion aerobic activities this jacket is perfect.