Sitka, the manufacturer of performance hunting apparel and specialized gear, has introduced its most advanced line of insulation pieces with its Ambient Collection.

The Collection adapts to changing weather conditions and levels of activity—when users are static and temperatures are low, the pieces insulate to deliver warmth. When wearers are active or the temperature rises, the pieces breathe to expel heat.

“These active insulation products adapt to changing conditions allowing for more efficient layering,” said John Barlow, Sitka’s Big Game product manager. “The Ambient Collection transitions seamlessly from outerwear when active to a mid-layer as activity slows and temperatures drop.”

The Collection features the Ambient Jacket for men and women and a Men’s Ambient Hoody made with post-consumer recycled PrimaLoft Evolve insulation, 20-denier ripstop nylon fabric, a DWR finish for weather protection, and mechanical stretch for a full range of motion.

PrimaLoft Evolve insulation mimics properties found in animal fur with fibers of differing lengths and deniers to create natural highs and lows in the material, producing open structures that maximize airflow when in motion and air is trapped when at rest, offering optimal thermal performance with low bulk. 

Sitka designed the pieces without a traditional liner, making the garments two layers instead of the conventional three-layer construction for a more efficient transfer of heat and moisture.

“This collection increases the performance of any Sitka clothing system providing unmatched versatility during active pursuits in cool and cold weather,” Barlow added. “The Ambient Collection is your adaptive insulation solution.”

Each item is available in Gore Optifade Subalpine with select Gore Optifade patterns and solid colors. For more product information, go here

Photo courtesy Sitka