Arc'teryx Phase SV Hoodie - Women's 2012: Ideal for cold days in the alpine, this super-wicking Arc’teryx Phase SV Hoodie base layer has mid-level insulation and a comfortable hoody to keep you warm and dry. Engineered for superior moisture management and rapid dry-times during stop-and-go activities, this form-fitting hoodie keeps the user drier and more comfortable. Encapsulated silver-ion fibers provide durable and long-lasting odor control.