The On Weather Vest is a lightweight insulated running layer designed to keep you warm without slowing you down. Built with On ThermaTec™ insulation and PrimaLoft® Silver padding, it traps heat close to the body while maintaining excellent breathability for cold-weather training. A close, performance-focused fit layers easily over your running kit, while the breathable back construction helps regulate temperature when your effort increases. Lightweight, packable and designed for unpredictable conditions, the Weather Vest is the perfect outer layer for chilly morning miles and winter runs.
On ThermaTec™ insulation: Lightweight PrimaLoft® Silver insulation traps warmth without adding unnecessary bulk.
Breathable back construction: Ventilated rear panel allows airflow to help regulate temperature during high-effort runs.
Packable design: The vest can pack into its own chest pocket for easy storage when the temperature rises.
Secure storage: Two side pockets and a double-zip chest pocket provide space for keys, phone or small essentials.
Reflective details: Reflective elements on the front and back improve visibility in low-light running conditions.
Comfort-focused details: Brushed fabric inside the collar helps reduce friction and improves comfort during longer runs.
