A navy check blazer and black jeans are indispensable menswear must-haves if you're piecing together an off-duty wardrobe that matches up to the highest sartorial standards. Rounding off with black leather double monks is a guaranteed way to introduce some extra depth to this look. There are a myriad of ways to look cool and get through the heatwave, and this here is one of them. A no-brainer for guys over 30 looking for a more mature image.