This is a stylish, relaxed, slightly oversized hit  (common for cashmere/wool knits).  It appears to be a pullover sweater with a soft crew or mock neck base, but the standout feature is the large, detachable or integrated neck scarf/tie.
 
1. One size only.
2. If you don't like the original colors, you can pick your own combination from the color 
     card, if neither of these works for you.  I can provide more color options to choose from 
     until you are completely satisfied.