Knowledge
Materials & Craftsmanship
It's easy to get caught up in numbers and technical specifications. But what really matters is how materials and construction work together. Here we explain what we use, why we use it and what difference it makes.
Details that make a difference.
Materials and construction influence both feel and function. That's why we pay close attention to how every part of the underquilt is designed.
What it means
Our underquilts are filled with Polish goose down rated at 900 fill power. The filling consists of 95% down and 5% feathers, providing excellent insulation relative to its weight.
Why it matters
Loft gives the insulation room to work. Warmth also depends on fill weight, fit and the overall construction.
Technical details
Fill power describes the lofting ability of down under standardised test conditions. CUIN is the unit used to express its volume in cubic inches per ounce; our filling is rated at 900 CUIN. A higher value means a given amount of down can occupy a larger volume. Loft is the thickness of the insulation: air retained between the fine structures of the down limits heat loss. Fill power does not tell you how much down an underquilt contains or determine its temperature performance on its own. Fill weight, baffle geometry, loft, coverage and the overall construction also matter.