アームウォーマー
also: アームウォーマ · アームウオーマー · アームウォマー
Meanings
1
arm warmers
Knitted or fabric sleeves worn on the forearms for warmth, often without covering the fingers. Common in casual and street fashion.
On cold days, wearing arm warmers keeps your wrists warm.
She gave me hand-knitted arm warmers as a present.