bearskin
/ˈbeəskɪn/noun
1- the pelt of a bear, especially when used as a rug or wrap（作小地毯或大衣用的）熊毛皮。
1.1
- a tall cap of black fur worn ceremonially by certain troops, such as the Guards in the British army（英国禁卫军等仪仗队用的）熊皮高帽。