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High performance insulation experts
 since 1984

Insulation built to perform, no matter the conditions.

 Synthetic Insulation Technology 

It's what's on the inside that counts

Found inside products by leading outdoor, apparel and footwear brands, PrimaLoft® engineers synthetic insulation and material technologies that deliver lasting comfort and high performance in real-world, changing environments.

Born from the need for a "warm-when-wet" alternative to down in the 80s, we never stopped pushing forward – advancing synthetic innovation without compromising on what's good for our planet.

 About PrimaLoft® 

We're committed to being Relentlessly Responsible

At PrimaLoft, we believe you shouldn’t have to choose between what’s good for you and what’s good for the planet. Every product we make combines material innovation, world class performance and sustainability. We call this approach Relentlessly Responsible™.

 Made with PrimaLoft® 

PrimaLoft x Marmot Aerothermal Hoodie

Breathes like a feather. Feels like a fleece. Powered by PrimaLoft® Active Evolve insulation.

A closer look
 Insulation & Technology 

Insulations driven by performance and sustainability

Comfort looks different in every environment. PrimaLoft® insulation technologies are engineered for distinct performance needs, from maximum warmth in cold conditions to breathable comfort during active pursuits and dependable durability in demanding environments.

 Your favorite brands, powered by PrimaLoft®.