Sizing Charts

Personalised T-Shirts

The "Real-World" Fit Guide

Most of our apparel is printed on the Gildan 5000 (Heavy Cotton). It’s the gold standard for weekenders because it’s durable, holds its shape, and—most importantly—is built for comfort, not a catwalk.

1. The "Boxy" Fit (Classic, Not Slim)

This isn't a "fashion-fit" shirt you’d find in a high-street boutique. It is a Classic UK Unisex Fit.

• The Shape: It’s straight-cut from the armpit to the hem.

• The Vibe: Plenty of room to move, breathe, and dance. It doesn't cling to your "beer storage" area (the midsection).

2. Advice for the Lads (Dad-Bod Friendly)

If you usually buy your clothes from M&S, Next, or typical UK supermarkets, stick to your usual size.

• Between sizes? If you’re caught between a Large and an XL, we always recommend sizing up. It’s better to have a bit of extra room for the Sunday session than a shirt that’s too tight to wear.

• Shoulder Room: These have a sturdy, reinforced shoulder. If you’re broad-chested, you’ll find these much more comfortable than "slim-fit" alternatives.

3. Advice for the Ladies (Boyfriend Fit)

Please note that these are Unisex shirts, not contoured "lady-fit" tees.

• For a Relaxed Look: Order your usual UK dress size equivalent (see the chart below).

• For a Tighter Fit: Size down by one. Many of our customers like to tie a knot at the side or roll the sleeves for a more styled festival look.

• The Length: These are standard length, so they’re great for tucking into high-waisted shorts or jeans.

4. The "Cotton Rule" (Shrinkage)

Our shirts are 100% heavy cotton. While they are pre-shrunk, any cotton garment will pull in slightly (about 5%) if you wash it at 40°C or throw it in a hot tumble dryer.

• Top Tip: If you like your fit "just right" and plan on using a dryer, order one size up to account for that first wash.

Organiser’s WhatsApp "Cheat Sheet"

Ordering for 15 people? Don't spend all night answering questions about sizes. Copy and paste this message into your group chat:

WEEKENDER SHIRTS – SIZES NEEDED! 🚨

I'm ordering our custom gear from Adult Weekender. These are a Standard UK Boxy Fit (not slim fit).

The Advice: > - Lads: Stick to your usual size. If you're between sizes or have a "dad bod," size up.

• Girls: These are "boyfriend fit" unisex tees. Size down if you want it tighter.

REPLY WITH: Size (S to 5XL) + The Nickname you want on the back.

Deadline: I need this by [Insert Date]!

For our Fancy Dress:

Smiffys Mens Size Guide