Well in theory anyway.
Patagonia 1000 fill down jacket.
Most down jackets fail immediately as soon as they get wet.
Montbell currently offers the 1 000 fill plasma down jacket and parka with thin 7d shells.
Patagonia only released 1 000 of the encapsil parkas for purchase all of which are gone now.
A second look at patagonia s 1 000 fill encapsil down belay parka.
This 18 ounce water repellent encapsil 1 000 fill power down belay parka is the warmest jacket you can get for the weight.
Both patagonia and montbell have created such jackets with the former not only going maximum fill power but adding encapsil water repellent technology on top.
Fill weight fill power gets the most press but fill weight is perhaps the most important factor in determining a down jacket s warmth.
The development story is pretty interesting and detailed extensively in this recent post on patagonia s blog the cleanest line.
In 2013 patagonia experimented with a 1 000 fill down jacket the encapsil but hasn t yet brought it back to market.
It s the classic down jacket made thoughtfully in every way.
For all you ultralight hiking or fast and light alpine enthusiasts the latest craze in down jackets is 1000 fill power providing you the best warmth to weight ratio on the market.
The microlight alpine down jacket features 750 fill power european hydrophobic goose down which holds up well in a light rain.
And let s be honest having a 1000 fill down jacket for most days on the mountain is a bit like.
Hydrophobic down is certainly very helpful in combatting moisture.
It s lightweight with 800 fill down and a ripstop exterior includes two hand pockets an adjustable hem and an adjustable hood.
Patagonia takes 800 fill down and applies a special surface treatment to the feathers that adds both water resistance and increases the fill power to 1000.
It has a much wider range of motion than we expected and is treated with a dwr finish.
The perfect warmth for just about everything our classic down sweater is lightweight and windproof with a 100 recycled polyester ripstop shell and 800 fill power advanced global traceable down goose down certified by nsf international to help ensure the birds that supply it are not force fed or live plucked.
Patagonia is not the first manufacturer to introduce water repellant down of course but they insist their manufacturing process delivers additional advantages not least the ability to create down with the unprecedented 1000 fill power rating.