The North Face™ developed a partnership with PrimaLoft® to offer a new synthetic alternative to down. Thermoball™ powered by PrimaLoft® is a revolution in insulation technology. Unlike traditional, continuous-filament synthetic insulations, the small round PrimaLoft® synthetic fiber clusters closely to mimic down clusters; trapping heat within small air pockets to retain warmth.

Independent CLO testing has shown that Thermoball™ technology can offer the low weight, loft, warmth, and compressibility of down with the wet-weather insulating performance of synthetics.


  • Thermoball™ powered by PrimaLoft® collection features Thermoball insulation technology
  • Lightweight
  • Phenomenal warmth in cold and wet conditions
  • Packs neatly into zipper pocket (not all styles pack into zipper pocket.)
  • Insulates even when wet

Here at Eagle Eye we are carrying Thermoball™ products in the jacket and vest. Various sizing and colors are available in the Men’s & Women’s deaprtment. Stop by our store to see which one is your favorite.

%d bloggers like this: