BTS Jungkook’s Handwriting Is Now Available On Your Chest And Butt
BTS Jungkook‘s long-standing relationship with Calvin Klein just leveled up in the most personal way possible.
The K-Pop superstar, who has been the global ambassador for Calvin Klein Jeans and Calvin Klein Underwear since March 2023, has officially dropped his first-ever collaborative collection with the brand. And it’s a big one.
The collection pulls from Jungkook’s love of motorcycles and leans heavily into a biker-inspired, streetwear aesthetic. Think trucker jackets, baggy jeans, straight fits and graphic tees that feel like a love letter to 90s style. There’s also a racer jacket in the mix because of course there is.
But the detail everyone is actually talking about? The underwear.
The collection includes bra tops and bottoms featuring ‘CK x JK’ embroidered in Jungkook’s own handwriting, along with designs inspired by his crown tattoo. Jungkook himself described them as graphics inspired by his tattoos, not exact copies, developed together with the CK team.
The little drawings are actually graphics inspired by my own tattoos, but not exactly a copy. The CK team helped to develop them and make sure these are extra special. I spent a lot of time thinking about which graphic should go where on the individual pieces. The underwear is so iconic, so this really is adding a little bit of my design essence in a meaningful way.
— BTS’s Jungkook
“The little drawings are actually graphics inspired by my own tattoos, but not exactly a copy. The CK team helped to develop them and make sure these are extra special. I spent a lot of time thinking about which graphic should go where on the individual pieces. The underwear is… pic.twitter.com/ho5hVS4jpu
— jungkook admirer (@dreamjeons) May 19, 2026
That detail has since gone massively viral, with fans pointing out the very real possibility of walking around with Jungkook’s branding on their chest and backside. The reactions have been exactly what you’d expect.
🫦🫦🫦🫦 pic.twitter.com/bn9lkBP6as
— 정국79 (@mniyj79) May 19, 2026
the CKJK underwear has Jung Kook’s handwritten “2026” on it🥵 pic.twitter.com/CelIndfZLG
— 黃金借記卡 :) (@IMGOLDENCARD) May 19, 2026
at the back of the women’s underwear, there is ‘CK x JK’ embroidered in jungkook’s handwriting ! pic.twitter.com/iNNAfJqpou
— jungkook admirer (@dreamjeons) May 19, 2026
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