Pack light. Move fast. The Terrex Agravic Windweave Pro Wind Jacket keeps you motivated on the trails during windswept days. Body-mapping technology creates differential air permeability to block out wind and rain, while simultaneously letting body vapor escape. The jacket is lighter than ever thanks to Windweave Pro - a fabric that is 50% lighter than the original Windweave material. The trail running packet-it solution means you can easily pack the jacket down into an inner mesh pocket when the sun comes out.