Reviewed by IntenseAngler from Boise, Idaho on Wednesday, January 23, 2013
This has been the perfect addition to my layering system for extreme cold weather outdoor sports (fishing, hiking, etc.). Has kept my face and neck warm in temps down to -5 F. The extra insulation that this provides also helps retain heat under my hat for added warmth, making for a big difference! Some additional benefits are it's overall comfort level against the skin, and surprising warmth to weight ratio. Overall, exactly what I needed!