At that time, the football was made of bamboo instead of leather.

那时，足球使用竹子做的而不是皮革。

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Football shoes vamp: use more kangaroos skin or synthetic leather, strengthen the contact with the ball, directional control and accuracy.

足球鞋鞋面：多采用袋鼠皮或合成皮制成，增强与球接触时的控制力，方向性和精确性。

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I always want to--modern football helmets which are monstrous-- I'm so old we used to play with leather ones without a face mask.

现代美式橄榄球的面具就跟怪兽一样的,我老了,我们小时候打球都是皮质头盔而且没有面具的

耶鲁公开课 - 古希腊历史简介课程节选

There is a military aid, which is different, who carried what's called the 'football', which is a leather section that contains the highest classified communication equipment and nuclear codes.

有个军事助理，那是不同的，他负责拿着叫“足球”的东西，是个皮革的盒子,里面装着最高秘密等级的,通信设备,和原子弹设备。

普林斯顿公开课 - 国际座谈会课程节选

In fact, kids might be just as well-served if football brought back the leather helmet.

FORBES: Your Football-Playing Kids May As Well Be Wearing Leather Helmets

The Crimson football team won the Rose Bowl in the leather-helmet days and famously tied Yale in 1968, and the Harvard rowers can hold their own against Oxford and Cambridge in the Henley Regatta.

NPR: Harvard's 1st NCAA Win Brings 'Unexpected Pride'