An outfit that has gone viral from a user named Myako's tweet "here":https://twitter.com/myakkomyako/status/540485949822468096, on December 4th, 2014. The [[turtleneck]] [[ribbed sweater]] prominently features a [[cleavage cutout]].

Artists eventually began throwing around the challenge to draw their waifu or husbando in the sweater.

Please note that sweaters with [[cleavage cutout|cleavage cutouts]] are nothing new. Only use this tag if the [[sweater]] the character is wearing is identical/adapted from the one in the tweet or if the artist tags it open-chest sweater/says it is related to the whole fad.

Also called "例のセーター":[http://dic.pixiv.net/a/%E4%BE%8B%E3%81%AE%E3%82%BB%E3%83%BC%E3%82%BF%E3%83%BC] or [i]that[/i] sweater as with the [[virgin killer sweater]], although with limited use.

h4. See also

* [[virgin killer sweater]]
* [[meme attire]]

h4. External links

* Pixivision: "Too sexy! A slit across the chest collection":[http://www.pixivision.net/en/a/220]
* Pixiv Encyclopedia: "胸開きタートルネック":[http://dic.pixiv.net/a/%E8%83%B8%E9%96%8B%E3%81%8D%E3%82%BF%E3%83%BC%E3%83%88%E3%83%AB%E3%83%8D%E3%83%83%E3%82%AF]
* Nico Nico Pedia: "胸開きタートルネック":[http://dic.nicovideo.jp/a/%E8%83%B8%E9%96%8B%E3%81%8D%E3%82%BF%E3%83%BC%E3%83%88%E3%83%AB%E3%83%8D%E3%83%83%E3%82%AF]
* Know Your Meme: "Keyhole Turtleneck":[http://knowyourmeme.com/memes/keyhole-turtleneck]
* "Twitter image search":https://twitter.com/search?q=%E8%83%B8%E9%96%8B%E3%81%8D%E3%82%BF%E3%83%BC%E3%83%88%E3%83%AB%E3%83%8D%E3%83%83%E3%82%AF%20OR%20%E4%BE%8B%E3%81%AE%E3%82%BF%E3%83%BC%E3%83%88%E3%83%AB%E3%83%8D%E3%83%83%E3%82%AF&mode=photos
* "NicoSeiga tag search":http://seiga.nicovideo.jp/tag/%E4%BE%8B%E3%81%AE%E3%82%BF%E3%83%BC%E3%83%88%E3%83%AB%E3%83%8D%E3%83%83%E3%82%AF?target=illust_all
* "NetLab news article (JP)":http://nlab.itmedia.co.jp/nl/articles/1412/06/news018.html
* "Togech news article (JP)":http://togech.jp/2014/12/05/16065
胸開きタートルネック 例のタートルネック 胸空きタートルネック