Herno Size Guide

As one of the UK's leading independent Herno stockists, we've helped hundreds of customers find their perfect Herno size. This guide covers everything you need to know — from EU to UK conversions, to how Herno fits across tops, jackets, trousers and footwear.

Does Herno Run Small?

This is the question we get asked most. The short answer is: not anymore. Herno has evolved significantly as a brand. Where older collections could run slim, today's Herno range — particularly the ready-to-wear and outerwear — is cut for a modern, relaxed silhouette. Most tops and jackets are Regular Fit, meaning you take your normal size. The key is checking the fit indicator on each product page. Every Herno item at Union 22 carries one of three fit labels, and those tell you everything you need to know.

The Union 22 Fit System

On every Herno product page at Union 22 you'll find a fit indicator. Here's exactly what each one means:

SLIM FIT — SIZE UP
This garment cuts slim through the chest and shoulders. If you're normally a Large, order an XL. When in doubt on a Slim Fit piece, always go up one size.
REGULAR FIT — TAKE YOUR NORMAL SIZE
The most common fit across Herno tops and jackets. If you're normally a Large, order a Large. No adjustment needed.
BIG FIT — SIZE DOWN
This garment has a relaxed, oversized cut. If you're normally a Large, order a Medium for a clean, considered fit.

The fit label also appears as a short line in the product description — for example: 'This is a slim fit — we recommend going up a size' or 'This is a regular fit — take your normal size.'

Herno EU to UK Size Conversion

All Union 22 Herno products are listed with both EU and UK sizing — for example EU48/M UK.

EU UK Chest Width (inches)
EU 44 XS 34–36"
EU 46 S 36–38"
EU 48 M 38–40"
EU 50 L 40–42"
EU 52 XL 42–44"
EU 54 XXL 44–46"
EU 56 3XL 46–48"

Herno Trousers & Pants Sizing

Herno trousers and pants fit generously — as a general rule, drop a full size down from your usual waist measurement.

UK Waist Size Herno Size
36" / XL EU 50 / L
34" / L EU 48 / M
32" / M EU 46 / S
30" / S EU 44 / XS

If you're usually a 34" waist, order the EU 48 / Medium. If you're usually a 32" waist, order the EU 46 / Small. Every Herno trouser at Union 22 will carry a Big Fit indicator as a reminder.

Herno Footwear Sizing

Herno footwear runs large compared to sports and trainer sizing. As a general rule, drop a full size down from your usual trainer size. If you normally wear a UK 10 in Nike, Adidas, Hoka or similar sports trainers, order a UK 9 in Herno footwear.

Your Usual Trainer Size Herno Footwear Size
UK 8 UK 7
UK 9 UK 8
UK 10 UK 9
UK 11 UK 10
UK 12 UK 11

Still Not Sure? Ask Us.

Get Expert Sizing Advice

Getting your Herno size right is exactly what we're here for. Drop us a message on WhatsApp and we'll advise you on the right size based on what you normally wear — it takes two minutes and means you get it right first time. Every message comes straight through to Dale or a member of the team personally. No bots, no automated replies.

WhatsApp: +44 7903 574585
Message us on WhatsApp →

We also offer free personal shopping sessions in store at Union House, Liverpool, where we can size you across the full Herno range in person.

About Herno at Union 22

Union 22 is one of the UK's leading independent Herno stockists, carrying the full ready-to-wear and outerwear collections each season — from the Laminar outerwear the brand built its reputation on, now evolved into the Functional outerwear collection, through to the knitwear, jersey and trouser collections that have made Herno our number one brand. Every season we select the pieces personally, and every product page carries our own fit guidance so you can buy with confidence.

Shop all Herno at Union 22 →