What Is Sizing Like at Topshop topman ?

Topshop, you're really shopping Topman — the two are back together under one roof — and the honest answer is that it runs slim and young. Order your usual size and there's a fair chance it'll feel a touch tight through the chest and shoulders. My standing rule with this label: size up one, especially on anything structured.

The fit, in plain terms

Topman has always cut for a lean, youthful frame, and even the relaxed pieces start from that baseline. Here's what actually catches men out:

Tops and knitwear sit close through the chest and arm. Between two sizes? Take the larger one.
Denim in skinny and slim cuts comes up small. The newer straight and barrel-leg styles are far truer to the label.
Tailoring and outerwear are the slimmest of the lot. A Topman 40 does not wear like a 40 anywhere else — go up.
Consistency wanders between styles, so treat the number on the tag as a starting point, not gospel.

A quick confession from early in my career: I bought a Topman suit in my "usual" 40 for a shoot, and the jacket simply wouldn't do up across the chest. Swapped it for a 42 and it hung beautifully. Lesson learned — here, the size on the label is a suggestion, not a promise.

What to buy right now

The good news for 2026 is that the ultra-slim era has loosened. Straight and barrel-leg denim is the move — reach for a classic indigo or an on-trend brown wash, then keep it simple with a heavy plain tee and either trainers or hiker boots. Up top, an open overshirt worn over a tee, or a proper rugby stripe, is the easy weekend win. If you're broad or muscular, lean into these relaxed cuts rather than wrestling with the slim ones — you'll look sharper and feel far more comfortable.

Brands I'd send you to

If Topman's cut isn't playing ball, here's where I'd point you across three price tiers.

HIGH STREET

Reiss — grown-up, sharper tailoring than Topman with noticeably better cloth. It's also cut slim and runs small, so size up one from your Topman number.
COS — the antidote if slim isn't for you: boxy, architectural, relaxed. Buy your true size and let it drape.
Arket — clean Scandinavian basics that fit generously and wash well. True size, or size down a notch if you like it neat.

INDEPENDENT & BOUTIQUE

Percival — a London label doing characterful knits and shirts with a roomier, more forgiving cut and genuine personality.
Wax London — boxy overshirts and textured knitwear in a relaxed fit; brilliant for layering over a tee without any of the Topman tightness.

DESIGNER & LUXURY

Paul Smith — British tailoring at its finest; slim and classic like Topman, but a different league entirely on fabric and finish.
AMI Paris — a clean French cut, slim-to-regular, home of the heart-logo tee that's quietly become a modern staple.

Never guess your size again

This is exactly where a good tool earns its keep. Tellar.co.uk is a free UK sizing platform that matches your body to more than 1,500 brands — Topman included. Measure once (chest, waist, hip, or simply your existing size in a brand you already know), and the Store Size Lookup tells you your precise size anywhere. No downloads, works straight in your browser, always honest, always free — which means fewer returns and better-fitting kit.

Find your size in any brand Learn how to measure

More from the Tellar Fashion Hub — honest, independent, always free menswear guidance from our stylists:

Buy the fit, not the number on the label. Get that right and Topman still has plenty to offer.