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The Feather Architect




Mr. Toshikatsu Kawada's family has been in the down business for five generations, and he has dedicated his life to creating the perfect feather. In this documentary portrait, we meet the man behind KUIU's innovative Super Down products, and catch a glimpse of his passion and absolute devotion to quality.

Close up of thousands of down clusters scattered across a blue work surface
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The Feather Scientists

The International Down and Feather Laboratory is the foremost authority on testing down. Watch their procedures that certify KUIU’s QuixDown.

Close up view of individual down plumes scattered on blue work surface
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What's In Your Down?

IDFL’s Matt Lieber explains how a Composition and Species Analysis works, showing a real-world analysis of KUIU’s Quix Down. Matt lays out why you care whether your jacket is made of goose or duck down, and why the down cluster percentage tells you about the quality and cleanliness of your jacket’s down fill.

Two glass jars laying horizontally in a shake tester to determine how much loft is preserved when wet
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Why Water Resistant Down?

A lot of companies claim their down is waterproof…but how waterproof is it? Matt Lieber from IDFL pulls back the curtain on the Hydrophobic Shake Test, showing a real 90-minute test pitting KUIU’s Quix Down against a competitor.

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