Technologies

Cross Core®

Combines multiple PrimaLoft® technologies to deliver lightweight warmth for demanding conditions.

Advanced Fiber Technology

What is PrimaLoft® Cross Core®?

Because every gram matters

Products featuring PrimaLoft® Cross Core® combine PrimaLoft® insulation with advanced materials to provide real-world benefits. Whether you're climbing higher, hiking farther, or simply staying comfortable in cold weather, carrying less weight can make a big difference. PrimaLoft® Cross Core® helps reduce the trade-off between warmth and mobility, delivering high-performance insulation that feels lighter, packs smaller, and helps keep you comfortable when temperatures drop. Designed for demanding adventures and everyday winter wear alike, it offers efficient warmth without unnecessary bulk.

PrimaLoft® insulation meets aerogel technology

The most prevalent material combined with PrimaLoft® insulation is aerogel, one of the lightest solid materials ever created. Originally pioneered by NASA for aerospace applications, aerogel is composed of more than 95% air and is known for its exceptional thermal properties. By integrating aerogel technology into select PrimaLoft® insulation platforms, Cross Core delivers a new level of lightweight warmth and comfort.

How does it work?

A new approach to lightweight warmth

Tiny aerogel particles are integrated into PrimaLoft® fibers, helping reduce heat loss without adding weight to the fibers. All while maintaining the softness, compressibility, and comfort expected from PrimaLoft® insulation.

Aerogel - Engineered for lightweight performance

Advanced thermal technology

PrimaLoft® fibers are fused with aerogel to create next-level comfort and performance.

More warmth from every fiber

Ceramic is another versatile material that provides performance benefits. Inside PrimaLoft® Gold Down Blend with Cross Core Technology, ceramic-infused fibers work alongside premium down to help hold onto body heat. The ceramic particles quickly absorb and retain warmth, helping create lasting comfort without extra weight. By combining natural down with advanced insulation technology, this blend delivers lightweight warmth designed for everyday adventures in cold weather.

Aerogel - Engineered for lightweight performance

Advanced thermal technology

PrimaLoft® fibers have been fused with ceramic particles made from earthen elements to quickly capture and absorb heat, providing an immediate boost of warmth.

Insulation Products