Lightweight Warmth, Built to Move The Flow Vest blends a sleek, modern silhouette with high-performance functionality—ideal for crisp mornings, rainy days, and cold descents. Its durable ripstop outer pairs with a soft fleece lining to lock in warmth, while a DWR finish repels light rain and moisture. Designed for unrestricted movement, it’s a versatile essential for hiking, cycling, and trail riding.