The On Trail Breaker Half Zipper Jacket is the ultralight and protective midlayer designed for trail running. This lightweight jacket offers protection against light wind and rain, featuring a durable water-repellent coating and a packable hood that easily tucks into the collar. With a breathable design enhanced by air vents at the back and underarm gussets made with four-way stretch mesh, it ensures optimal airflow and unrestricted movement. The long quarter zip allows for easy on and off, even on technical trails, and the thumb holes keep your sleeves in place while keeping fingers free in cold weather. The innovative watch window in the sleeve lets you check your stats without missing a beat. Made with sustainability in mind, at least 40% of the jacket's content is recycled by weight, with the polyamide consisting of at least 90% recycled material. Perfect for changing weather conditions, the On Trail Breaker Half Zipper Jacket combines functionality, comfort, and eco-conscious design for the dedicated trail runner.