E-6 ULThe E 6 UL Ultralight Hybrid Jacket is engineered for versatility and warmth in a lightweight package, making it suitable for both mountain and city environments. This men's packable down jacket features a 700 fill power RDS certified down body, offering a strong warmth to weight ratio for cold weather without unnecessary bulk. The hybrid construction uses stretch fleece on the sleeves and lower back, allowing for natural movement during hiking,