【Press Release】Millet Launches "Active Insulation" Series, Keeping You Comfortable Even on the Go.

Oct 22, 2025

Millet, a leading French alpine brand founded in 1921 (Millet Mountain Group Japan Co., Ltd.: Shinagawa-ku, Tokyo, Representative Director Per Rasmussen), announces the "ACTIVE INSULATION" series, which combines lightness and high breathability.
This series consists of three types. The "BOSSONS" series, which uses 100% recycled PrimaLoft® insulation for excellent warmth and lightness, includes two models: the "BOSSONS 60 JKT" and the "BOSSONS 100 HD". These models achieve both ease of movement and breathability through three-dimensional cutting and strategic material placement.
Also in the lineup is the "BREATHEBARRIER TOI Ⅱ JKT", which features Millet's proprietary "BREATHEBARRIER®" technology on the outer fabric for excellent windproof and water-repellent properties while preventing stuffiness with moderate breathability, and "THROUGH WARM®", a thin brushed material woven with a unique mesh structure, on the lining. New colors have been added, and it will be available again this season.

The "ACTIVE INSULATION" series is not just for warmth, but is a "dynamic insulation" that skillfully controls the temperature and humidity inside the garment to keep the wearer constantly comfortable.
It prevents overheating and chilling from sweat, maintaining a comfortable body temperature even during activities in autumn and winter with extreme temperature differences. It safely and comfortably supports mountain climbing in the cold season. Sales will begin on October 22, 2025, at the MILLET official online store and authorized retailers nationwide.

ACTIVE INSULATION series special site URL
https://www.millet.jp/pages/insulation

◼︎ Choose the best option according to the season and climbing style

These three active insulation products were developed by pursuing the necessary functions for various situations encountered during activity, considering warmth, breathability, quick-drying properties, and even layering. You can choose the optimal one for each scene and activity.