How waterproof is the shell? My wife wants a very warm coat while skiing and although she doesn't plan to use it in super wet conditions where a gore-tex shell would be more appropriate would this be good in light snow?

Tech Specs:

Material:

[Shell] Pertex Endurance; [Lining] ripstop polyester 

Insulation:

650+ Fill down 

Hood:

Yes, removable 

Pockets:

2 Hand, 1 chest, 1 media, 2 water bottle 

Waterproof:

Yes 

Core Venting:

No 

Weight:

24.4oz (692g) 

Recommended Use:

Ice climbing, alpine climbing, mountaineering, winter camping, skiing in blizzards 

Manufacturer Warranty:

Lifetime 

Country of Origin:

China