He wore a vest under his jacket.

他在夹克里穿了件背心。

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It's too hot to wear a jacket or vest in the summer, or in overheated museums, stores, restaurants, planes, and trains in the winter.

在夏天，或者冬天在一间过热的博物馆，商店，旅馆，飞机和火车上，穿一件夹克或背心都太热了。

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That said, while the jacket may not replace my travel bag, I think it might be well-suited to my everyday needs (at least in cooler weather, as I'm not really a vest person).

尽管夹克不可能取代我的旅行包，我认为它还是能够满足我每天的需求(至少在冷一点的天气里是这样的，因为我真的不是一个夹克人)。

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The Tropiformer also includes magnetically attached sleeves to transform from jacket to vest in seconds.

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The ultimate master of costume made a wise choice for his courtroom appearance: He is wearing black satin pants, a black jacket and vest (no shirt), and a black neck scarf with tiny white polka dots.

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His appearance is described as gaunt and he was wearing a red jacket with a high-visibility vest over the top.

BBC: Hillfoot Street, Glasgow