Thermoball is amazing and is available at Maui North Ski, Bike & Board Co.

Developed with Primaloft, Inc. ThermoBall is a really cool new technology.  Different from traditional “continuous-filament synthetic insulation, the small round, Primaloft synthetic-fiber clusters closely mimic down clusters, trapping heath within small air pockets to retain warmth”  Testing by Kansas State University has shown that Thermoball is as warm as 600 fill down!  It has all the benefits of high quality down with the added benefits of synthetic insulation.  It’s soooo warm!