Ordering leavers hoodies for a whole year group is exciting — right up until someone asks, "what size should I put down?" Sizing is the single biggest cause of returns, re-orders and last-minute panic in group hoodie orders, and yet it's almost entirely avoidable. Get it right and every leaver ends up with a hoodie they'll actually wear for years. Get it wrong and you're chasing replacements the week before term ends.
This guide walks you through how leavers hoodie sizing really works, how to measure properly, and how to collect everyone's size without drowning in messages. It's written for the parents, PTAs, teachers and student reps who take on the job of organising the order.
Why hoodie sizing trips people up
Hoodies are forgiving garments, but they aren't standardised across the country. A "medium" from one supplier can fit very differently from a "medium" elsewhere, because sizing depends on the specific garment style, not a universal chart. On top of that, leavers hoodies are usually worn as a relaxed, casual layer — so the "correct" size on a measurement chart often isn't the size people actually want.
There are three common mistakes. The first is guessing sizes from a person's everyday clothing label rather than measuring. The second is ordering a fitted size when most people want their hoodie roomy. The third is collecting sizes in a rush, by word of mouth, and ending up with a spreadsheet full of "M?" and "not sure." Each of these is easy to fix.
Measure, don't guess: the chest method
The most reliable way to size a hoodie is by chest measurement, not by age or by a familiar dress size. You only need a soft tape measure.
To measure correctly, wrap the tape around the fullest part of the chest, under the arms and across the shoulder blades, keeping it level and snug but not tight. Take the measurement over a t-shirt, not over thick clothing. That number — in inches or centimetres — maps directly to a hoodie size chart and removes almost all the guesswork.
If you don't have a tape measure to hand, there's a clever shortcut: measure a hoodie that already fits the person well. Lay it flat, measure from armpit to armpit, and double it. That gives you the garment's chest width, which you can match to the size guide we provide.
Kids' sizing vs adult sizing
For primary school leavers, most pupils sit within children's sizes, which are usually labelled by age (for example 7–8, 9–11, 12–13 years). Age labels are a starting point, not a guarantee — a tall Year 6 pupil may need the next size up, and some will be comfortable in a small adult size. Always sanity-check against a chest measurement.
For secondary school, college and university leavers, almost everyone is into adult sizing (S, M, L, XL and beyond). Here the bigger decision isn't kids-vs-adult, it's how relaxed a fit each person wants — which brings us to the most important tip in this guide.
When to size up (and when not to)
Leavers hoodies are keepsakes worn casually, often over other layers, so the majority of people prefer them a little loose. As a rule of thumb:
- If someone likes a relaxed, comfy fit (most people), order their normal size or one size up.
- If someone wants a roomy, oversized look (very popular with teens), size up by one, sometimes two.
- If someone wants a closer, fitted feel, order their exact measured size.
- For growing children, sizing up one is sensible — but avoid going too big, as a hoodie that's enormous now won't get worn.
The key is to ask people their fit preference when you collect sizes, rather than assuming. A quick "fitted / regular / oversized" choice alongside the size solves most disagreements before they happen.
How to collect sizes for a whole class without the stress
This is where organisers lose the most time, so it's worth setting up properly from the start. A few things make it painless:
- Share one size guide with everyone at once. Send the chest-measurement chart so people self-select from the same reference. We supply a clear size guide with every order.
- Use a single form, not messages. A simple shared spreadsheet or form with columns for name, size and fit preference beats collecting sizes by text. Everyone fills in their own row.
- Set a deadline — and pad it. Give a cut-off a few days before you actually need it. There are always stragglers.
- Offer a try-on size set if you can. For very large orders, asking your supplier about a sample or sizing set lets people feel the fabric and fit before committing.
- Double-check the outliers. Flag the smallest and largest sizes and confirm them individually — these are the ones most likely to be guessed.
Build the list this way and you'll hand over a clean, confident order rather than a pile of question marks.
A note on personalised names and sizing
If your hoodies feature each person's name on the back — by far the most popular leavers design — sizing accuracy matters even more, because every hoodie is made individually and can't simply be swapped between people. That's all the more reason to measure properly and lock your list before production. Our team always sends a proof to approve before we print, so you get a final chance to check names and quantities together.
Frequently asked questions
Should I order by age or by chest size?
Always prefer chest measurement. Age labels are a rough guide for children's hoodies but vary a lot between individuals.
My class can't agree on fit — what do I do?
Let each person choose their own fit preference (fitted, regular or oversized) on the order form. It's the simplest way to keep everyone happy in one group order.
What if someone is between two sizes?
For a relaxed hoodie, round up. For a closer fit, round down. When in doubt with leavers hoodies, sizing up is the safer choice.
Can we change a size after ordering?
Changes are easy before production and before you approve your proof. Once personalised hoodies are printed they're made-to-order, so confirm sizes carefully at the proof stage.
Do you provide a size guide?
Yes — every order comes with a clear chest-measurement size chart covering children's and adult sizes, and our team is happy to advise on tricky fits.
Get your sizing sorted with CentralCustom
Nail the sizes and the rest of a leavers hoodie order falls into place. If you're ready to start, browse our leavers hoodies range, take a look at our primary school leavers hoodies for younger year groups, or request a group quote and we'll send over a size guide and talk you through the whole process.
