Alternative to Down. Developed in partnership with Primaloft, Thermoball is revolution in insulation technology. Small and round Primaloft synthetic-fiber clusters closely mimic down cluster, trapping heat within small air p...

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Alternative to Down. Developed in partnership with Primaloft, Thermoball is revolution in insulation technology. Small and round Primaloft synthetic-fiber clusters closely mimic down cluster, trapping heat within small air pockets to retain warmth. It offers the light weight, loft, warmth, and compressibility of down with the wet-weather insulating performance of synthetics.

  • ThermoBall insulated pullover with 15D nylon ripstop exterior
  • ThermoBall powered by PrimaLoft synthetic insulation retains loft and warmth, even when wet
  • Exposed molded-tooth center front zip
  • Internal elastic cuff and hem
  • Stowable in chest pocket
  • ThermoBall insulated pullover with 15D nylon ripstop exterior
  • ThermoBall powered by PrimaLoft synthetic insulation retains loft and warmth, even when wet
  • Exposed molded-tooth center front zip
  • Internal elastic cuff and hem
  • Stowable in chest pocket

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