American Express

From desk to dinner. Without changing.

The Oxford is the shirt that does it all without making a fuss about it. Classic Oxford weave — structured enough to look intentional, breathable enough to wear all day. Relaxed fit that works tucked in or left out. Roll the cuffs for a casual edge, keep them down for a polished finish. Button-down collar that stays sharp without a tie. Sixteen colorways so you can build a full rotation around a single silhouette.

What Makes It Different

Classic Oxford Weave — Structured, breathable, and holds its shape all day. The fabric that built a wardrobe staple.
Long-Sleeve Design — Roll the cuffs for casual. Keep them down for sharp. One shirt, two looks.
Relaxed Casual Fit — Not too slim, not too boxy. Just right for every build.
Button-Down Collar — Stays sharp without a tie. Polished without trying.
16 Colorways — A full palette of neutrals, pastels, and classics. Build your rotation.
Sizes S–3XL — Check our size guide for the best fit.

Product Specs

Material: Oxford weave fabric
Fit: Relaxed casual
Collar: Button-down
Sleeve: Long-sleeve (roll-up cuff)
Sizes: S, M, L, XL, 2XL, 3XL
Care: Machine wash cold, hang dry. Iron on medium heat if needed.

Sizing Note: These shirts run to an international slim standard — size up one for your ideal relaxed Western fit.

How to Wear It

Tuck into chinos with loafers for a sharp smart-casual look. Leave it out over dark denim and clean sneakers for a relaxed weekend vibe. Layer under a structured blazer for a polished edge. The Oxford handles every version of your day without missing a beat.

Built for the Undefyned Man

At Undefyning Lynes, the classics earn their place. The Oxford is part of The Undefyned Man collection — a foundational piece built for the man who knows that showing up well is never an accident.