Our half-pound bag of hypoallergenic 700 Fill Power, goose down is 100% natural and feather free, which means you can use it to fill your bed pillows, craft homemade stuffed animals or build-a-bear toys for children, for your Etsy projects, or even just …

In this guide, we’ll show you what down is and why we use it, what the crucial and often overlooked difference between fill power and fill weight is, how to make sense of warmth-to-weight ratio and down-to-feather ratios, and how to figure out how warm your jacket will be.

Fill power is a number that indicates the relative quality of down. The number comes from a lab test that measures how many cubic inches of loft one ounce of that down fill produces. Higher fill power numbers indicate greater loft and insulating efficiency.

Fill power measures the loft (or fluffiness) and effectiveness of the down insulation, or how much space it occupies when fully expanded. Sometimes fill power is referred to as “loft”. The higher the fill power, the better the down's ability to trap warm air and provide insulation.

Nov 19, 2024 · See our guide to down fill and insulation, where we explain down fill power, fill weight, goose vs. duck down, water repellent down, and more.

May 17, 2022 · How do I decide between down fill, feathers, or both? We outline the differences, especially how to choose down vs feather pillows.

Feb 9, 2025 · Down puffer jackets and sleeping bags keep you warm by trapping the warmth coming off your body, retaining it in air pockets between the down. A higher down fill power means the down has...

Aug 18, 2024 · Downfill comforters are like the coziest hugs imaginable and will transform any mattress into a fluffy cloud of cushiony comfort. But with so many options out there, choosing the right down-fill comforter for warmth, fluffiness, and durability can be confusing.

Down fill insulation is made from goose or duck plumage – the lofty, fluffy stuff underneath the feathers. The fill power of down indicates two important features: warmth-to-weight ratio and compressibility, both critical to retain warmth and furnish comfort.

Nov 26, 2024 · What is down fill power? Down fill power measures the loft and insulation efficiency of down. It indicates how many cubic inches one ounce of down can fill. Higher fill power, like 800 or 900, traps more air and provides better warmth with less weight, making it a top choice for cold-weather outdoor gear. What are the best insulation materials?