evo.com | Janji Activewear Jackets > Wind is the one variable you can't train around, which is why the Janji Zephyrunner Wind Shell Jacket exists. Its Zephyr fabric cuts wind while staying breathable, and back panel venting dumps heat when the pace picks up. At just 124 grams it stows into its own chest pocket, so there's no excuse not to bring it. CFM Rating of 16 The Zephyrunner strikes a perfect balance of wind-breaking breathability with a CFM rating of 16 engineered specifically for running and high-activity output activity. Zephyr Fabric 100% Nylon with PFC-Free C0-DWR Regular Fit Athletic fit that provides enough room for range of motion and air circulation - just right for comfortable movement. Strategic Breathability Back panel venting keeps you comfortable while maintaining wind protection. Bungee Hem and Hood Toggle | Janji Zephyrunner Wind Shell Jacket Men's 2026 - Medium Blue | Nylon