Ultimately lightweight and packable, our windproof Zeroweight jacket is the perfect minimalist solution for your go-everywhere summer shell. Crafted with ultra lightweight Mini Ripstop fabric, this runner's outer layer is 100% windproof, making it ideal for keeping out the chill without packing on the pounds. Best of all, the Zeroweight jacket quickly packs down into a pocket, making it so portable you'll never need to leave the house without it. With high tear- and abrasion-resistance delivering durability in all terrain, and laser-cut back ventilation maintaining proper airflow, this jacket is designed to keep you running for the long haul. Meanwhile, reflective detailing on the front helps keep you visible to oncoming traffic in low light conditions. Light, ultra functional and built for the demands of top tier athletes – that's the Zeroweight jacket.