For a smart casual getup, pair a white knit wool turtleneck with brown plaid wool dress pants — these two pieces play well together. For something more on the daring side to round off this outfit, choose a pair of white leather low top sneakers.
If you're looking for a casual yet seriously stylish look, pair a white knit wool turtleneck with blue jeans. Both garments are totally comfortable and will look great paired together. White leather low top sneakers work amazingly well with this getup.