Oversized Pinstripe Double-Breasted Blazer for Seoul Streetwear

Oversized Pinstripe Blazer, Reworked for the Street

This oversized pinstripe double-breasted blazer brings classic tailoring into a sharper, more contemporary lane. Its longline silhouette, broad structured shoulders, and relaxed volume create the kind of intentional proportion seen throughout Seoul fashion: polished enough for a gallery opening, understated enough for an everyday city uniform.

Fine vertical pinstripes add a subtle sense of movement and length to the silhouette, while the double-breasted front keeps the look grounded in traditional menswear. The result is not a stiff office blazer—it is a versatile statement layer for modern streetwear wardrobes, minimal avant-garde styling, and Korean-inspired smart casual outfits.

Designed with Strong, Relaxed Proportions

The blazer is cut oversized through the body and sleeves, allowing it to sit naturally over knitwear, hoodies, mock-necks, or lightweight layers. Defined shoulders give the relaxed shape a clean architectural edge, while the longer hem creates an effortlessly composed drape.

• Oversized longline fit: Delivers a relaxed, fashion-forward silhouette with generous layering room.
• Fine pinstripe pattern: A timeless tailoring detail that adds depth without overpowering the outfit.
• Double-breasted closure: Brings structure and classic suiting character to a street-ready profile.
• Structured shoulders: Help maintain a sharp shape even when styled loose and open.
• Flap pockets: Functional tailoring detail that completes the clean, refined finish.
• Stretch-blend fabric: Made with elastane for easier movement than traditional rigid suiting.

From Classic Suiting to Seoul Streetwear

Pinstripes have long been associated with formal tailoring, finance, and power dressing. In contemporary East Asian fashion, that history is often subverted through oversized cuts, monochrome layering, and relaxed styling. This blazer follows that approach: tailored, but never overly formal; classic, but unmistakably current.

Wear the gray pinstripe blazer with a black turtleneck, silver jewelry, and wide-leg trousers for a clean Seoul-inspired look. Choose the black pinstripe blazer with washed denim, a graphic tee, and leather boots to lean into darker streetwear territory. For an elevated everyday outfit, layer it over a plain tank or fitted knit with straight-leg trousers and low-profile sneakers.

Please note: The trousers and accessories shown in lifestyle images are styling references only and are not included with this blazer.

Product Details

Oversized Pinstripe Blazer Size Chart

All measurements are garment measurements. Please allow a small manual measurement difference of 1–3 cm. Compare the measurements with a blazer you already own for the best fit.

Care Advice

To preserve the blazer’s structure, pinstripe finish, and tailored shape, professional dry cleaning is recommended. Hang on a wide-shoulder hanger after wear and steam lightly when needed rather than using high direct heat.