This is a lightweight and highly insulating down jacket from mont-bell. I purchased it about two years ago, but it's a bit too large for me, so I've only used it a few times. It can be stored in the attached bag, as shown in the photos. ◆ Product Information This lightweight and soft down jacket is made with "Windstopper® Fabrics," a material with high windproof and waterproof-breathable properties, and filled with high-quality down. *It is not completely waterproof. Since it is not seam-taped, water may penetrate through the seams. ◆ Specifications 【Material】Outer: Windstopper® Fabrics by GORE-TEX Labs [Face: 13-denier Ballistic Airlight® nylon ripstop] Lining: 10-denier Ballistic Airlight® nylon ripstop [Water-repellent finish, anti-static treatment] Insulation: 800 fill power EX Down 【Average Weight】323g 【Color】Black 【Size】L 【Features】4 pockets (2 with zippers on the waist, 2 internal without zippers) / Downproof construction / Single quilt construction / Includes stuff sack / Aqua-tect® zippers / Zipper guard to prevent chin contact / Alpine cuffs / Drawcord system 【Storage Size】Φ14 x 17cm