same size and same great features of the 3 season model, but with 5 ounces more down and 3.5" baffles overstuffed.
you can expect a solid 3.5-4" loft if hung correctly.
this, i expect, will take a hanger into the tens.
differential 3.5" baffles
12oz of 850+fp hungarian down
heavy duty polyester stitching
I love it!