What is the Difference Between 650 and 800 Fill Down?

The fill power of down is a measure of the space it takes up. It is measured by placing a weight on a cylinder and filling it with one ounce of down. After one minute, the space the down occupies is measured. An 800 fill power down takes up 800 cubic inches of space. A 650 fill power down takes up only 650 cubic inches of space.

Ems Featherpack Jacket

The Ems Featherpack Jacket is lightweight jacket with filling 650 or 800 , compact down jacket. It has 700 fill power and features a bungee cinch in the hem, Velcro cuff tabs, and a burly front zipper. The hood has an elasticized edge. The jacket also comes with an interior zippered pocket and a flannel-like lining.

The Ems Featherpack Jacket 650 or 800 fill down weighs only about 14 oz, making it a relatively lightweight option. Although it's not as warm as the fully baffled versions, the Helios jacket is great for most backpackers and still light enough to carry around. These jackets require special care and wet cleaning. The jacket is available in hooded and non-hooded models.

The quality of down in an Ems Featherpack Jacket can vary widely. A good quality jacket will have 500-550 fill power, while an excellent quality jacket will have between 600 and 800 fill power.

Ems Ryker Down Parka

The Ems Ryker Down Parka is an excellent winter jacket that protects you from the elements. It has an updated design and a comfortable, relaxed fit. The down fill makes it particularly warm, and it comes with multiple pockets and a stand-up collar. It also has a roll-away hood for added protection.

When it comes to the fill power of down, the higher the number the better. This is because higher fill power means the down is loftier and warmer. The fill power is calculated by measuring the amount of volume a single ounce of down clusters occupy. Generally, the higher the fill power, the warmer the jacket will be. However, you should know that lower-quality down is usually heavier and less compressible.

Rab Positron Pro

Rab's Positron Pro Down Jacket is one of their warmest models, and features 800-fill, ethically sourced down insulation. With its generous breast pocket and adjustable helmet-compatible hood, this jacket delivers superior warmth without sacrificing weight. It's also lightweight and features a hood with an insulated baffle.

This down-filled jacket is ideal choice for active mountain trip. Its two-way front zip makes it easy to adjust and has synthetic insulated baffles behind. It also features a hood with a wired peak and face baffle. The hood adjusters are easy to use with gloved hands. A women's version of the Positron Pro offers a comfortable fit and increased mobility in colder conditions.

Another down-filled jacket from Rab is the Arc'teryx Thorium AR Hoody. It's ideal for alpine warmth thanks to its 750-fill power goose down and dwr finish. It also has a helmet-compatible hood, articulated elbows, and a stuff sack for storing extra gear. The Rab Positron Pro is priced at a premium and offers many features.

Montbell

Montbell 650 and 800 fill down is made from premium goose down with high loft, which means it traps a large amount of air and offers excellent insulation. This down is also hypoallergenic and machine washable. This down is extremely soft to the touch and comfortable to sleep in.

The fill power of a down cylinder determines how much air and warmth it can hold. A higher fill power down will be fluffier and take up more space than a lower fill power down. A fill power of 600 to 700 is considered good, while a fill power of 800 and above is considered high.