Millet (Millet Mountain Group Japan Co., Ltd.: Shinagawa-ku, Tokyo, Representative Director Per Rasmussen), a leading French alpine brand founded in 1921, offers four distinctive thermal lines that skillfully control functions such as warmth, breathability, and quick-drying properties required during activities, using advanced technology and independently developed materials.
This series, named "Active Thermal" as "insulating wear that truly excels when constantly active," allows you to choose the perfect piece for various situations such as mountaineering, trekking, and snow mountain approaches.
For 2025, new items have been added, including the Through Warm Hybrid Jacket, Dry Grid Half-Zip, and Alpha Light Vest. The selection has been further enhanced through the pursuit of designs that leverage each item's unique characteristics, and the addition of vest types that increase layering freedom.
The "Active Thermal" series will be available for purchase from September 2025 at the official MILLET online store (https://www.millet.jp/) and authorized retailers nationwide.
ACTIVE THERMAL series Special Website URL https://www.millet.jp/pages/thermal
■ Choose the optimal item from four distinctive thermals.
The series features four distinctive thermals: "Through Warm," specialized for breathability and lightness; "Waffle Wool," which offers excellent elasticity in addition to natural moisture regulation; "Dry Grid," which excels in moisture absorption and quick-drying properties and can be layered like a base layer; and "Alpha Light," which is the warmest with insulation.
They support comfortable activity in all fields, including autumn/winter mountaineering, trekking, and snow mountain approaches. You can choose the optimal layering for your mountaineering environment and activity level.
■ Details of each product feature
・DRY GRID
A hybrid grid structure wicks away sweat and quickly dries the skin.
This hybrid fabric combines a grid structure made of water-repellent polypropylene on the skin side to keep it dry, with a polyester material on the surface that excels in moisture absorption and diffusion. It is widely useful as a base layer for high-intensity activities or as a light fleece to throw on when it gets chilly.
・THROUGH WARM
Lightweight with balanced warmth and moisture absorption
This active insulation utilizes "Through Warm®," a thin brushed material knitted with a unique mesh structure. It combines the conflicting functions of warmth and breathability, while also achieving astonishing lightness. It is active insulation that can be used in a variety of situations for fast-paced activities in winter.
・THROUGH WARM
Lightweight with balanced warmth and moisture absorption
This active insulation utilizes "Through Warm®," a thin brushed material knitted with a unique mesh structure. It combines the conflicting functions of warmth and breathability, while also achieving astonishing lightness. It is active insulation that can be used in a variety of situations for fast-paced activities in winter.
・WAFFLE WOOL
Evolved wool knit, woven from extra-fine merino wool with advanced technology
This waffle fabric, a blend of high-quality merino wool for natural comfort and synthetic fibers for durability and quick-drying properties, is finished with calculated computer knitting to achieve a superb balance of fit, warmth, and breathability. By adjusting the knitting method in areas such as the armpits and back to be looser, breathability and elasticity are delicately controlled.
Waffle Wool Hoodie
・ALPHA LIGHT
Insulated thermal wear that stays warm even when wet
This active insulation features "Polartec® Alpha®" insulation, which provides moderate warmth and excellent sweat management, sandwiched between breathable knit material. It allows for various layering patterns, such as wearing it alone over a base layer or combining it with other mid-layers. It keeps you warm when it's chilly and prevents stuffiness when you sweat, so you can keep wearing it throughout autumn and winter hikes with extreme temperature differences.
・WAFFLE WOOL
Evolved wool knit, woven from extra-fine merino wool with advanced technology
This waffle fabric, a blend of high-quality merino wool for natural comfort and synthetic fibers for durability and quick-drying properties, is finished with calculated computer knitting to achieve a superb balance of fit, warmth, and breathability. By adjusting the knitting method in areas such as the armpits and back to be looser, breathability and elasticity are delicately controlled.
Waffle Wool Hoodie
・ALPHA LIGHT
Insulated thermal wear that stays warm even when wet
This active insulation features "Polartec® Alpha®" insulation, which provides moderate warmth and excellent sweat management, sandwiched between breathable knit material. It allows for various layering patterns, such as wearing it alone over a base layer or combining it with other mid-layers. It keeps you warm when it's chilly and prevents stuffiness when you sweat, so you can keep wearing it throughout autumn and winter hikes with extreme temperature differences.
