Some say the name comes from the thick colours of leather early marines worn around their necks to protect them from cuts during battles.

有人说这个名字出自于皮革的厚重的颜色，早期的水兵在打仗的时候把皮革绕在脖子上防止被砍伤。

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Some say the name comes from the thick collars of leather early Marines wore around their necks to protect them from cuts during battles.

VOA: special.2010.03.07

Others say the sun burned the Marines necks until their skin looked like leather.

VOA: special.2010.03.07

They are spotless, pale brown, pretty, and have oversized bells fastened on leather collars around their necks.

BBC: Swiss movement