D-8 PRO

The D-8 PRO is our most technical high-alpine insulation jacket, built for year-round mountain use as either a standalone piece or an insulating layer under a Gore-Tex shell on the coldest days. Made from Pertex 20D Quantum with Diamond Fuse technology, the tightly woven outer fabric strikes a refined balance between protection and breathability, while the uniquely engineered yarn structure increases durability without adding unnecessary weight. A classic diamond quilt and 800 fill power RDS-certified down deliver serious warmth in a clean, lightweight package, finished with two chest pockets, two hand pockets, and elastic arm cuffs. Minimalist design and refined lines reflect The Mountain Studio's commitment to Swiss alpine engineering and timeless style. Built with a 100% nylon Pertex 20D Quantum Diamond Fuse shell, a PFAS-free Bionic Finish, RDS-certified 800 fill power down, and YKK zippers, it is made for dependable, responsible warmth on the coldest days. Available in Black Onyx, the D-8 PRO moves from high-alpine days to everyday winter wear. This technical down jacket is trusted for serious warmth in a lightweight, durable package.