I mean, it's better open collar, you know?

我是说领子开着比较好，不是吗？

youdao

His tie was pulled loose and his collar hung open.

他的领带被扯松了，衣领敞开着。

《柯林斯英汉双解大词典》

Many grads are underemployed, working as shop attendants or on factory lines, and not because there aren't white-collar jobs open but because they aren't qualified for any available positions.

很多毕业生就业无门，只能当商店服务员或在工厂流水线上工作，这不是因为没有可供选择的白领工作，而是因为他们不能胜任任何现有的职位。

youdao

Dressed in khaki, silver stars glittering on his open collar, chewing on a meerschaum pipe, he ambled to the center of the stage with a sheaf of notes clutched in his hand.

NEWYORKER: Rat Beach

Andres Manuel Lopez Obrador strides onto the stage in a white button-down shirt, the collar open, his pose relaxed.

NPR: Mexican Candidate Resists Comparisons with Chavez

It plans to open a boutique cinema, live music venues and a white-collar boxing club by 2018.

WSJ: Shopping Centers Take a New Spin on Leisure