Thermal insulation for a wide range of uses - The Women's Thermoball Full Zip Jacket by The North Face. The lightweight synthetic jacket for cooler temperatures comes with innovative insulation technology. ThermoBall, a material developed by The North Face and PrimaLoft, combines the thermal efficiency and compressibility of a 600 cu in down with the insensitivity to moisture of a synthetic down.
The whole thing works by imitating the structure of down with tiny synthetic balls. These balls can be compressed like a down, are lightweight, thermally efficient and retain their functionality even when wet. That makes the Women's Thermoball Full Zip Jacket by The North Face a tough companion for sports and leisure. Light and tough ripstop nylon further reduces the overall weight of the jacket and protects the insulation. The Women's Thermoball Full Zip Jacket by The North Face can be worn alone or as a layer under a weatherproof hardshell.