The Womens Lightweight Down Packable Jacket is built for warmth and protection, whatever the forecast. Filled with RDS-certified down and a 600 fill power rating, it delivers serious insulation without the bulk. Heat-sealed baffles lock in thermal performance, while a DWR finish adds water resistance for unpredictable weather. Finished with an adjustable hem and a packable construction, making it easy to wear, store, and carry wherever you go. A hardwearing layer made for the wild and the everyday. RDS Down - This product is Responsible Down Standard (RDS) certified by Control Union CUC-890403. RDS certified products contain down and feathers from farms certified to animal welfare requirements Fill Power Rating 600 - Higher fill power = warmer item. The measure of the loft (fluffiness). The higher the rating, the more air trapped per ounce of down allowing a higher level of insulation Water-Resistant - Treated with durable water repellent (DWR), droplets will bead and roll off the fabric. Ideal for Light rain, or limited exposure to rain