Navigate any trail with cutting-edge comfort When the forecast calls for cold winds, potential rainfall, and any weather you might consider "bleak", a layer like the Graves PX Shell is essential for your running getup. The Graves PX Shell is crafted from our custom Toray Primeflex fabric-also used in our bestselling Graves PX running shorts-that&&';;s light, wind- and water-resistant, and significantly more breathable than a rain jacket. While it&&';;s a great line of defense against the elements, the modern, minimalist style easily transitions across your daily settings, making it a versatile part of your weekly wardrobe.