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A rmicroclimate powerhouse with breathable synthetic loft, our new flexible insulator serves as a packable heater, extra frosty-day layer or morning warm-up during any cold season mission. PrimaLoft® One insulation warms even when wet, and innovative hybrid fabric construction sheds moisture and, because of its exceptional breathability, won't overheat your core.
PRIMALOFT® ONE INSULATION
The ultimate microfiber insulation. Ultrafine fibers are specially treated in a patented process and then combined into an insulating core that's soft, lightweight and water-resistant. PrimaLoft One absorbs three times less water, is 14% warmer when dry and 24% warmer when wet than competitive insulation.
Our durable water-repellent (DWR) finish causes moisture to bead on the surface so it rolls off or evaporates rather than soaking into the fabric.