Suit shirt options
Sporting a button up without a tie below your blazer looks incredibly sleek. Button it all the way or leave one or two undone at the top for a masculine chest appearance.
A thick, oversized cardigan looks great unbuttoned with a button-up shirt and tie underneath or even a crewneck sweater or tee. If you feel better buttoned up, try a thin cardigan with low-placed buttons to showcase your tie.