guard hair
US /ˈɡɑːrd her/
UK /ˈɡɑːrd her/

1.
rambut pelindung, bulu luar
the longer, coarser, and usually stiffer hairs that form the outer protective layer of a mammal's fur, covering the softer undercoat
:
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The wolf's thick guard hairs protect it from the harsh winter weather.
Rambut pelindung tebal serigala melindunginya dari cuaca musim dingin yang keras.
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The dog's coat consists of a soft undercoat and stiff guard hairs.
Bulu anjing terdiri dari bulu bawah yang lembut dan rambut pelindung yang kaku.