Knitwear in general (sweatshirts, cardigans, sweaters, even t-shirts) is a good fit for the tech office because it is the quintessential casual-yet-refined garm

Knitwear in general (sweatshirts, cardigans, sweaters, even t-shirts) is a good fit for the tech office because it is the quintessential casual-yet-refined garment. I've experimented with different types. Dark jeans can be fairly dressed up, but chinos are also a good option.