A grey tank and grey skinny jeans are awesome menswear pieces to add to your current casual lineup. For a more refined feel, complement your ensemble with chelsea boots.
Grey Tank with Chelsea Boots Casual Chill Weather Outfits For Men
This combination of a grey tank and white chinos makes for the perfect base for a laid-back and cool ensemble. You could perhaps get a little creative on the shoe front and complement your look with chelsea boots.