The Oversized Shirt Trend for Men (2026)

The oversized shirt trend: how to wear the boxy fit without losing the plot.

Last updated: August 2026

Oversized works when it is deliberate in exactly one place: a boxy shirt over a slim base with tapered bottoms reads styled, while oversized-on-oversized reads borrowed. Here is how the relaxed silhouette actually works, and the shirt that is selling because of it.

In this article

• The one-loose-piece rule
• How to wear it
• The shirt
• FAQ

The one-loose-piece rule

Volume needs contrast. An oversized shirt earns its drape against a fitted tee beneath and slim or tapered trousers below; the eye reads the proportion as chosen. Stack loose over loose over loose and the silhouette has no anchor. One loose piece per outfit, everything else trim, that is the entire trend decoded.

How to wear it

Worn open over a fitted tee it works as a light layer, September's easiest look. Buttoned and untucked, keep the hem above mid-thigh, longer starts reading like a gown. Sleeves cuffed once or twice sharpen the drape, and dark solid colours carry the boxy cut with far more polish than loud prints. Feet stay clean and low-profile: white sneakers or loafers.

The shirt

Frequently asked questions

Are oversized shirts in style for men?

Yes, the relaxed silhouette remains one of menswear's dominant directions into fall 2026.

How oversized is too oversized?

Shoulder seams past mid-bicep or a hem below mid-thigh, past those points drape becomes drown.

What do you wear under an oversized shirt?

A fitted plain tee, the slim base is what makes the volume above it read deliberate.

Oversized shirt with what pants?

Slim or tapered trousers, jeans or joggers, contrast below is non-negotiable.

Can oversized shirts work for smart casual?

Borderline, a subtle boxy cut in a dark solid can, but a standard fit is safer; see how a casual shirt should fit.

More on fit: are wide-leg pants in style and the shirt fabrics guide.