EX Down

World class, high quality down

Montbell's premium down comes from water fowl that live in regions with seasonal temperature extremes. The down balls from birds in such regions are characteristically much larger.

Large down balls hold more warm air, which translates to needing less down to provide exceptional warmth retention.

Fill power (or loftiness) refers to the volume in cubic inches that 1 ounce of down will displace. The higher the fill power, the less down is needed to achieve a given thermal profile. All other things being equal (fabric, construction method, and fill amount), a product made with high fill power down is lighter and more compressible than an equally warm one made with lower quality down.

Lightweight yet warm

When compared by weight to lower quality down, an equal amount of premium down is loftier and has better warmth retaining properties.