About 1000 Fill Power 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.
This product uses the highest quality down in the world which has exceptional loft. However, high quality down is not always pure white and as a result, it may be possible to see darker colored down through the fabric.
About Quilting Pattern
Redesigning our quilting pattern also helped reduce weight. Quilting is very important to prevent down from settling, however, if the pattern is too elaborate, down won't be able to loft properly which creates cold spots. This innovative quilting pattern prevents down from settling and reduces cold spots but only uses half the amount of thread as our normal quilting pattern.
About 7-denier Ballistic Airlight®
Ballistic Airlight® is made using the same nylon polymer as our Ballistic® material and a highly technical production process to create extremely fine, super thin threads. These threads are then woven into ultralight, gossamer fabrics that share the same characteristics as Ballistic®: one and a half times more abrasion resistance than other similar weight fabrics and boasts three times the tear strength of nylons that are almost 20% heavier. Additionally, Ballistic Airlight® is often woven using different techniques to create fabrics with radically different characteristics, such as fabrics that allow the garment to stretch or fabrics that "breathe" to release built up heat and moisture.