Ready. Set. Explore. The men's Rossignol Sidelhorn Packable Jacket is an ultralight, windproof trail running and hiking jacket that packs into its own chest pocket. Stow it in your running vest or day pack and hit the trail prepared for changing weather. The minimalist design resists occasional light rain and maintains breathability for extended efforts. Regular Fit Cut for a classic fit with a little extra room for comfort, allowing for freedom of movement and layering Blocks Wind Windproof fabric blocks the wind and keeps out the chill Breathable 15K breathable material keeps you comfortable through extended efforts Ultralight Feel Ultralight materials offer distraction-free comfort and maximum range of motion Ultralight, Packable Ultralight design packs into its own pocket for convenient storage on the go PFC-Free Water-Repellency Includes a Durable Water-Repellent (DWR) finish that sheds light rain and wet conditions without using toxic fluorocarbon-based chemicals