I just finished up a new project, an M50 Primaloft Pullover. The pattern is a modified Thru-hiker Kinsman pattern. The difference is the collar is 1/2" shorter, the chest zip is 2" shorter and the arm girth is 2" smaller at shoulder tapering to 1" smaller at wrist. The is the same pattern I used for my LytW8 down pullover. The synthetic version is 1.8 oz Primaloft sport with gray outer M50 and black inner M50. The finished weight is 6.75 oz (size medium). Not a ground breaking project, but I was impressed by the weight and feel of the jacket. Though I am generally a down jacket fan there are times when a synthetic puffy really shines. Compared to synthetic jackets in the market I think this one serves my needs better than anything I can buy. If interested in a similar jacket, I recommend checking out the kinsman kit at thru-hiker.com.