noun
jean jacket; denim jacket
Casual abbreviation of ジーンズジャンパー. Common in everyday speech and fashion contexts.
See also: ジーンズジャンパー
今日はGジャンを着て出かけた。
I went out wearing a jean jacket today.
あの古着屋でかっこいいGジャンを見つけた。
I found a cool denim jacket at that secondhand shop.