AC-Vent™
KJUS-patented forearm vents speed the body's natural cooling process, fine-tuned on demand.
Orange Label · Aerogel Insulation
Men's Frozen Smoke Jacket
Aerospace-derived insulation, built into our most technical jacket yet. Warmth with almost no weight.
Space Grade. Slope Proven.
A material born for space, engineered for the mountain.
Aerogel begins as a gel. Its liquid is replaced with gas, leaving behind a solid that is almost entirely air. What remains traps heat in microscopic pockets. Originally developed for spacecraft insulation, Aerogel is now built into the lining of the Frozen Smoke Jacket. The result is warmth without the bulk of traditional insulation.
99%
Air by volume
1/3
The weight of comparable insulation
20K
Waterproof & breathable rating
The Technology
Six systems, working together
Keep warm, regulate temperature, and stay comfortable on the mountain.
Helmet-Compatible Fixed Hood
A fixed hood designed to fit over a helmet.
Reactive Climate Control
Thermodynamic materials trap body heat during peak effort and release it as you cool down.
RidgeLogic Graphene
Graphene-engineered materials transport body heat evenly through the fabric, reducing cold spots.
Sunfibre™ Wearable Active Lighting
Connects to a phone or power bank for added visibility in low light.
Mineral Circulation Cuffs
Cuff-level mineral technology supports circulation where cold sets in first.
Space Grade. Slope Proven.
Technology engineered for aerospace. Proven above the tree line.
In Motion
The Frozen Smoke Jacket, on the mountain
See the power of Aerogel insulation in action, on real terrain.
The Frozen Smoke Jacket
Space Grade. Slope Proven.
Aerogel insulation, built into KJUS's most technical jacket.