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What is 600 fill down?

Author

Sarah Smith

Published Jan 24, 2026

Goose Down Fill 600

600 fill down is warm, lightweight and durable. Ideal for general outdoor and day-to-day use.

Is 600 down fill warm?

600 fill down is warm, lightweight and durable. Ideal for general outdoor and day-to-day use.

Is 600 fill down good?

While down costs more, it is a much better insulator than feathers and thus is preferred in good insulated jackets. A 600 fill power down jacket with an 80/20 down to feather ratio will be a warmer jacket than a 600 fill power jacket with a 70/30 ratio.

What is 600 fill power down?

A higher number means the down takes up more space and is capable of trapping more air. As an example, our Epiq Down Jackets are filled with 600 fill power down – so in the above test, one ounce of this down takes up 600 cubic inches of space.

What is the difference between 600 and 700 down fill?

The more insulating air pockets down traps, the warmer it will keep you! So in simple terms, the higher the fill power of a down jacket or sleeping bag, the warmer it will be for its weight. The image below illustrates the difference in volume between a gram of 600, a gram of 700, and a gram of 800 fill power down.

27 related questions found

How warm is 600 fill down comforter?

600-700. These are considered excellent quality comforters and provide optimal warmth. A 650 or above Fill Power maybe too warm for those who keep their thermostat at 70+ degrees Fahrenheit.

Is down warmer than polyester?

Down is lighter and weight-for-weight it's warmer than synthetic insulation.

What is down made of?

What Is Down? Known for its incredible softness, down is a filling feather gathered from the undercoat of geese, ducks, and swans. Because of its lightweight nature and lofty fluff, down is a great temperature regulator for people who sleep hot.

How warm is a 650 down jacket?

Warmth. If you're searching for a cozy down jacket at a low price point, the REI Co-op 650 2.0 is a great candidate. The jacket's lining is soft against the skin, and the 4.2 ounces of 650-fill down kept me warm into the 40s Fahrenheit with just a t-shirt on underneath.

How warm is 650 fill power down jacket?

A 650 down fill jacket with 330g of down may be as warm as an 800 down fill jacket with only 120g, but the 650 fill jacket will be bigger, heavier and take up more room when stuffed in your pack.

What is the highest fill power down?

Down Fill Power

Loftier down gets the highest ratings, and it's the warmest, lightest, and most compressible. For outdoor gear, the heart of the down fill power range is from around 500 to 900.

What does 90 down mean?

The numbers are generally 70/30, 80/20, or 90/10. The first number represents the percentage of down, and the second number represents the percentage of feathers. Generally speaking, a higher first number means a higher quality (and more expensive) product.

What temperature should I wear a down vest?

These are light layers and so it's ideal for a cool fall day, around 50-60 degrees F.

Is 650 down good?

What is this? When you look at average down jackets you can buy today, you'll notice that most of them are insulated with 550-650 fill power down. That's kind of like the best middle ground – it's high quality, has high loft, but not too expensive to produce.

Is down the warmest coat?

But are down jackets really the way to go? In short, absolutely. Down jackets made of goose down (the smaller, fluffier feathers underneath the harder exterior feathers) are pound for pound the best insulation against cold temperatures, according to NY Daily News.

Are geese killed for down?

Farmers usually harvest goose down after the birds are slaughtered for meat, and most geese are killed about 15 weeks after hatching. But farmers may also pluck the feathers when geese are still alive, a painful process akin to someone ripping out human hair, animal welfare and advocacy groups say.

How many years does a down comforter last?

A down comforter should last between 10 and 15 years. However, there are some things that can influence their life.

Are down jackets ethical?

“Down is a superior material in terms of warmth and weight. It's environmentally friendly. It's also a byproduct of the food industry – if it wasn't being used by apparel companies it would still be there because people are eating the birds. The campaign groups sometimes forget that.”

Is down warmer than Thinsulate?

Thinsulate is considered "the warmest thin apparel insulation" available. In fact, when equal thicknesses are compared, it provides about 1½ times the warmth of down and about twice the warmth of other high-loft insulation materials.

Is there anything warmer than down?

Synthetic insulation is designed to replicate the qualities of down, but retain them even when wet. It's made with polyester fibers that are arranged in different sized filaments and intertwined, mimicking down's lofty clusters. These ultrafine fibers trap warmth in air pockets, providing great warmth…

Is synthetic fill as warm as down?

Although it works in the same way as down—body heat gets trapped by the fibers' loft—synthetic insulation in general is less warm, heavier, and less compressible than down.

What is a good fill count for a down comforter?

Good comforters normally start at 575 fill power. Better comforters are 650 fill power and up. 1000 fill power is the most luxurious.

How many ounces is 600 fill power?

So, if you are talking about 600 fill power, one ounce of it will puff up to 600 cubic inches, automatically trapping air (insulation) in millions of little areas. Compared to 800 fill power, one ounce of which will loft up to the size of about 3 ½, 1 gallon jugs.