Warm for its weight, and exceptionally warm for its price tag, the Cirrus Ultra is great for all-round use if not full-on winter mountains. This is an interesting synthetic jacket, which you could almost mistake for down, say Penny Orr and Dan Bailey.
Interesting, are we now getting to the point where down has had it's chips? If the cons would be the same with real down as the filling, then surely the extra expense of real down would make it uncompetitive as a filling in the world of real people spending their own money on things. How much would a technical down jacket whose design eliminates cold spots be cheaper by if it used the same TILT and Thermoplume+ insulation as this one?