Oversized Black Double-Breasted Blazer for Korean Streetwear Layering

Oversized Black Blazer, Reworked for the Street

Tailoring does not have to feel formal. This oversized black double-breasted blazer takes the authority of classic suiting and loosens it up for modern Korean streetwear. Its extended silhouette, broad shoulders, and relaxed proportions create the kind of effortless presence seen from Seoul creative districts to Tokyo gallery spaces.

Designed as a versatile outer layer rather than a boardroom uniform, this black blazer brings structure to baggy denim, wide-leg trousers, knitwear, hoodies, and minimal tees. It is the piece that makes an otherwise simple outfit look considered.

Structured Oversized Tailoring

The blazer features a clean double-breasted front, wide notched lapels, and padded shoulders that give the silhouette a confident architectural line. The long relaxed cut leaves room for layering without losing shape, while flap pockets preserve the refined language of traditional tailoring.

Its slightly thicker polyester fabric has a smooth feel and a non-stretch construction, helping the blazer maintain its defined drape through repeated wear. A smooth lining improves comfort when worn over long sleeves, sweaters, or lightweight hoodies.

Key Features

• Oversized longline fit for a relaxed Korean streetwear silhouette
• Double-breasted closure with a polished tailored finish
• Padded shoulders for a stronger, more defined upper-body shape
• Wide notched lapels that add visual structure to layered outfits
• Flap pockets for a classic blazer profile
• Smooth inner lining for easier layering and everyday comfort
• Slightly thick, non-stretch fabric that holds its shape

From Seoul Tailoring to Everyday Streetwear

Oversized suiting has become a defining element of contemporary East Asian fashion. Rather than following the narrow, fitted tailoring of past decades, Seoul fashion favors intentional volume: dropped proportions, wider trousers, longer sleeves, and a balance between polish and ease. This blazer captures that attitude in a wearable all-black essential.

Wear it buttoned with tailored trousers and leather shoes for a monochrome K-pop style look, or keep it open over a graphic tee and faded wide-leg jeans for a more relaxed art-school silhouette. Add a long scarf, silver jewelry, or a crossbody bag to push the look further into avant-garde streetwear territory.

Styling Ideas

• Minimal Seoul look: Pair with black wide-leg trousers, a fitted tee, and loafers.
• Casual contrast: Layer over a hoodie with washed denim and chunky sneakers.
• Gallery-night uniform: Style with grey gradient jeans, sunglasses, and leather boots.
• Gender-fluid tailoring: Wear over a slim knit top or cropped layer with relaxed trousers.

Product Details

Oversized Black Blazer Size Guide

Measurements are taken flat and may vary slightly by 1–3 cm. For the intended oversized fit, choose your usual size. Size down only if you prefer a more controlled tailored silhouette.

Care Advice

To protect the blazer’s structured shoulders and clean silhouette, dry clean when needed. Between wears, hang it on a wide-shoulder hanger and steam lightly to release wrinkles. Avoid high heat, bleach, and tumble drying.