N-UNCOUNT
（柔软的）垫料，衬料
Padding is soft material which is put on something or inside it in order to make it less hard, to protect it, or to give it a different shape.
例句
...the foam rubber padding on the headphones...
头戴式耳机上的泡沫橡胶垫料
Players must wear padding to protect them from injury.
运动员必须戴防护垫以免受伤。