The only reason I give it 4 is it was a replacement for an REI primaloft that was superior in that the collar was not as heavily insulated; it would lay flat (and it was a little bit lighter). I climbed and caved in the darn thing and would wash it and wear it to work!
Had I not been spoiled by my first little black vest I probably would have given this one five stars.
The fit is good and true to the sizing chart - not too big. And it is SNUGGLY, let me tell you. Great for heavily air conditioned areas / warehouses / outdoor work. Really keeps your core warm, and it's about the lightest one out there. Good inside pocket as well as deep outside pockets as well. Nice design, quality needle work.