Keeps you warm especially your nose without getting too warm.  And comfortable too -- the inner lining is soft and breathable.  Nice that is it is reversible to a neon orange for times when you need to be seen.  The overhang over the eye browse gives enough space such that you can still move your eye browse without restriction.  I think I would actually prefer a mouth opening as I feel that would give me a little more air.  At times, the breathing does feel a little restricted especially if breathing heavy, such as if you were hiking into a hunting area.  Stitching is top notch with no noticeable fraying.  All edges of this balaclava are smooth as well.  Love the fact that this is water repellant.  Colors are richer in person and tad darker, note.  Overall this is a great hunters balaclava and I recommend it if you are doing the kind of hunting where you won't get getting your heart rate up.