A beige waistcoat and beige cargo pants are absolute mainstays if you're picking out an elegant wardrobe that holds to the highest sartorial standards. For something more on the casual end to complement this outfit, introduce light blue athletic shoes to the mix.
A white long sleeve shirt and white jeans are wonderful menswear staples that will integrate perfectly within your off-duty repertoire. You could perhaps get a little creative on the shoe front and play down this outfit by rounding off with grey athletic shoes.
A black quilted gilet and charcoal jeans are a savvy combo that will easily carry you throughout the day and into the night. Break up your look with more casual shoes, such as this pair of black athletic shoes.
This pairing of a grey crew-neck sweater and olive cargo pants is on the off-duty side yet it's also seriously stylish and seriously dapper.
Why not dress in a white long sleeve shirt and blue jeans? Both pieces are very comfortable and will look awesome when combined together. Have some fun with things and complement your outfit with multi colored athletic shoes.