These shoes are two sizes too small.

这鞋小了两号。

《新英汉大辞典》

Ms. Tanenbaum buys shoes that are two sizes larger than her regular shoes.

tanenbaum买的跑鞋比他日常穿的鞋大两个号。

youdao

Shoes in teenage sizes bump up the score further, since pre-teens are less likely to buy stolen goods.

ECONOMIST: Computing

Shaking like a rag in her hand-me-downs and in the shoes that were four sizes too big!

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Underneath, seven white shoe boxes were piled, presumably containing the various sizes of the red leather shoes that popes traditionally wear.

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