At 190 cm tall with a runway model’s frame, Byeon Woo‑seok (변우석) doesn’t just wear clothes — he makes them look like they were designed for him. The 34‑year‑old Korean actor started as a fashion model (2014–2017), served in the military, and pivoted to acting with supporting roles in Record of Youth (2020) and Strong Girl Nam‑soon (2023). Then came Lovely Runner (2024), and overnight he became the “first love memory manipulator” who broke the internet.
Now in 2026, he’s the male lead of MBC’s Perfect Crown opposite IU, a global Prada ambassador, the first‑ever official ambassador for Ader Error, and the owner of 14 million Instagram followers. His style — effortless, muted, oversized but never sloppy — has turned “boyfriend look” (남친룩) into a search term that trends every time he steps outside.
This guide breaks down every layer of Byeon Woo‑seok’s style: his real‑life boyfriend material outfits, his Prada runway moments, his K‑drama character wardrobes from Lovely Runner to Perfect Crown, and practical tips to recreate the look without the celebrity budget.
Byeon Woo‑seok’s Boyfriend Material Outfits
If there’s one phrase that defines Byeon Woo‑seok’s personal style, it’s “boyfriend material.” His off‑duty wardrobe revolves around a simple formula: neutral colors, relaxed fits, and one standout accessory — usually a beanie or cap. He gravitates toward street brands like Stüssy, Palace, and Nike Jordan, mixed with higher‑end pieces from Ader Error (where he’s now the brand’s first‑ever ambassador) and Prada.
His airport looks, captured almost weekly by Korean media, have become a style category of their own. The recurring elements are consistent: a black or charcoal oversized coat over a simple white or grey tee, straight‑leg trousers or relaxed denim, and clean sneakers — often Salomon XT‑Quest or Nike Air Jordan 1. He finishes with a knit beanie in winter or a curved‑brim cap in warmer months. The color palette rarely exceeds three tones, and that restraint is exactly what makes it work.
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What separates Byeon Woo‑seok from other celebrity “boyfriend looks” is proportion. At 190 cm, oversized tops on him don’t look baggy — they look intentional. He balances volume on top with slimmer or straight‑cut bottoms, creating a silhouette that feels both casual and composed. It’s the kind of style that looks like he grabbed whatever was closest to the door, but every piece is deliberately chosen.
Prada Ambassador: Milan Fashion Week FW 2026
In January 2026, Byeon Woo‑seok flew to Milan as Prada’s official brand ambassador to attend the Fall/Winter 2026 Menswear Show at the Fondazione Prada’s Deposito. Even his departure from Incheon Airport was a full Prada look — and the arrival in Milan was no different.
For the show itself, he wore a blush cable‑knit sweater layered over a pale shirt, paired with fluid black trousers and Prada brushed leather loafers. The look embodied the house’s FW26 philosophy: intellectual, restrained, and emotionally aware. Sure Magazine described it as “a study in quiet authority” — softness and structure in perfect balance.
Seated front row next to Nicholas Hoult, Byeon Woo‑seok didn’t try to compete with the louder fashion personalities around him. His strategy was subtraction: minimal accessories, no bold prints, just impeccable fabric and fit. It’s the same approach he brings to his personal style, scaled up to luxury level.
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The Prada partnership extends beyond fashion shows. Since becoming ambassador, his airport and event looks have increasingly featured Prada staples — the Re‑Nylon backpack, brushed leather shoes, and structured cotton tees (like the ₩1,420,000 shapeable cotton T‑shirt spotted at his Milan return). For Byeon Woo‑seok, Prada isn’t costume — it’s an extension of his existing minimalist DNA.
K‑Drama Fashion: Lovely Runner (2024) — Ryu Sun‑jae’s Style
Before Byeon Woo‑seok became a Prada ambassador, he became everyone’s first love as Ryu Sun‑jae in tvN’s Lovely Runner (선재 업고 튀어). The character’s wardrobe was a masterclass in youthful street style — and it worked because it felt almost identical to Byeon’s own off‑duty aesthetic.
Sun‑jae’s signature pieces included Grish check overshirts, Ader Error layered knits, and a Prismworks stadium jacket that sold out within days of airing. For formal scenes, the styling team reached for a Dolce & Gabbana brown herringbone long coat (valued around ₩4 million) that gave Sun‑jae a more mature, leading‑man energy.
The formula was consistent throughout the series: oversized shirt or jacket on top, slim black or dark navy trousers on the bottom, and white sneakers to anchor everything. Beanies and caps appeared in nearly every casual scene. If you strip away the drama context, Sun‑jae’s wardrobe is essentially Byeon Woo‑seok’s closet — which is exactly why it resonated so deeply with viewers. The character didn’t feel styled; he felt real.
K‑Drama Fashion: Perfect Crown (2026) — Prince Yi‑an’s Royal Modern Look
In MBC’s Perfect Crown (21세기 대군부인), Byeon Woo‑seok plays Prince Yi‑an in an alternate‑reality Korea where the monarchy still exists. The styling challenge was enormous: make traditional Korean clothing look contemporary without losing its cultural weight.
The wardrobe team solved this by blending hanbok elements — the cheollik robe, the durumagi overcoat — with Western tailoring techniques. Yi‑an’s color palette stays restrained: deep navy, charcoal, ivory, and muted earth tones. The fabrics are traditional Korean textiles, but the cuts are modern and structured, creating a silhouette that feels like it belongs in both a palace and a boardroom.
Where Ryu Sun‑jae’s style was approachable and street‑level, Prince Yi‑an’s fashion operates on a completely different register: authority, restraint, and quiet power. It’s the same minimalist instinct — fewer colors, cleaner lines, no unnecessary noise — expressed through a royal lens. For a deeper dive into both IU’s and Byeon Woo‑seok’s Perfect Crown wardrobes, read our dedicated Perfect Crown Fashion & Chemistry guide.
Early Career Style: Model Days & Record of Youth
Byeon Woo‑seok’s fashion sense didn’t appear overnight. From 2014 to 2017, he worked as a professional runway model, walking for brands at Seoul Fashion Week and building the foundational understanding of fit, fabric, and proportion that still defines his style today.
In Record of Youth (2020), his character Won Hae‑hyo was a model‑turned‑actor — essentially a fictionalized version of his own career path. The styling leaned dandy: tailored blazers, turtlenecks, slim trousers, and polished leather shoes. It was more formal than his personal style, but the same principles applied — clean color blocking, minimal accessories, and confidence in simplicity.
What the model years gave him, more than any specific brand loyalty, was an intuitive sense of what works on his frame. He knows that oversized works because of his height. He knows that muted colors let the silhouette speak. And he knows that the best accessory is posture — something you can’t buy.
How to Dress Like Byeon Woo‑seok — Budget‑Friendly Tips
You don’t need a Prada budget to capture the Byeon Woo‑seok aesthetic. His style is built on principles, not price tags. Here’s how to recreate it.
The Boyfriend Look formula: Start with an oversized hoodie or crewneck sweatshirt in black, grey, or navy. Pair it with straight‑leg jeans or relaxed chinos in a dark wash. Add clean white sneakers — anything from Nike Air Force 1 to a basic canvas shoe works. Finish with a knit beanie in winter or a simple curved‑brim cap in warmer months. Total look budget: under $100.
The Prada‑Feel formula: Swap the hoodie for a cable‑knit sweater in a soft tone (cream, blush, light grey). Keep the trousers slim and dark. Switch the sneakers to leather loafers or minimal leather shoes. Add a structured tote or backpack. The key is texture contrast — soft knit on top, sharp tailoring on the bottom. Budget alternatives: COS, ZARA, Uniqlo U, Musinsa Standard.
The three rules Byeon Woo‑seok always follows: First, keep your color palette to three tones or fewer per outfit — this is non‑negotiable in every look he wears. Second, only go oversized on one piece — if the top is relaxed, the bottom should be fitted, and vice versa. Third, let the shoes anchor the outfit — clean sneakers for casual, leather for elevated. Simple, repeatable, and effective at any height or budget.
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