Sierra Designs DriDown Agitation Test
ProLite Gear attempts to recreate Sierra Designs water agitation test and learns that DriDown does not perform as well as they had assumed. Watch until the very end to see DriDown fail the test.
View more episodes of ProLite Gear
Waterproof Down Insulation: is the demonstration valid?
Sierra Designs DriDown vs. Untreated Down - Steam Test