KYANITE JACKET W: Breathable warmth and mobility for your winter outings

Designed by Arc'teryx, the KYANITE JACKET W is a women’s fleece jacket designed to accompany you on your winter mountain adventures. Its Polartec® Power Stretch® Pro fabric combines warmth, stretch, and moisture management to maintain consistent comfort as the intensity of your activity increases. Thanks to its brushed fleece interior and standard fit, it can be worn as a mid-layer or a lightweight jacket depending on conditions. The KYANITE JACKET W strikes a precise balance between thermal protection, breathability, and freedom of movement for your active days outdoors.

Fleece insulation and controlled thermal comfort

The Kyanite Jacket Women's uses Polartec® Power Stretch® Pro fabric, whose brushed fleece interior provides even warmth while remaining comfortable against the skin. This fleece construction traps a thin layer of warm air close to the body, helping to stabilize your temperature during ascents, hikes, or dynamic winter outings. The standard fit makes it easy to wear a technical base layer underneath, allowing you to create a layering system tailored to your activity conditions. This ensures consistent thermal comfort in a lightweight, functional ski jacket without excessive bulk.

Freedom of movement and 4-way stretch

To keep up with all your movements, this women’s ski jacket features 4-way stretch. Polartec® Power Stretch® Pro, combined with an articulated design, allows the Kyanite Jacket Women’s to follow your movements without pulling or creating areas of tension, whether you’re on the approach, ski touring, or hiking. The hems, cuffs, and collar are reinforced with a stretchy, durable Tanica™ panel, which keeps the jacket in place while maintaining its elasticity over time. You’ll enjoy fluid mobility, which is useful for handling your gear or layering another piece without any discomfort.

Functional features for versatile mountain use

The No Slip Zip™ front zipper secures the closure of the KYANITE JACKET W, preventing accidental openings when layering or wearing a backpack. Two zippered handwarmer pockets provide a convenient space to keep your hands warm or store small items safely. The standard fit and construction of the jacket make it an easy-to-wear mid-layer under a waterproof or windproof jacket, optimizing your protection without sacrificing comfort.

Responsible and Sustainable Material Choices

Arc'teryx uses a blend of 53% polyester, 38% nylon, and 9% spandex to combine abrasion resistance, comfort, and stretch. The fabric is Bluesign-approved, ensuring supply chain oversight aimed at reducing environmental impact and promoting more responsible resource use. This approach helps deliver a jacket suited for heavy-duty mountain use while addressing textile sustainability concerns.

Whether for an active day in the mountains or as a mid-layer under your ski jacket, the KYANITE JACKET W lets you fully enjoy your winter activities with controlled warmth, fluid mobility, and functional features tailored to the terrain.