Size Guide

Last updated:

Sizing at a glance

  • Adult unisex: S, M, L, XL, 2XL, 3XL, 4XL, 5XL. 2XL and 3XL add $2; 4XL and 5XL add $4.
  • Youth: YXS, YS, YM, YL, YXL, all at one price.
  • Best method: lay a shirt that fits well flat, measure it, and compare with the chart on the product page.
  • Over a hoodie: go one size up.
  • Wrong size: 60 days from delivery to return or exchange, with a free return label.

Size is the question families ask most after timing. A jersey bought for senior night is worn by one person on one important evening, then kept, so it matters that it sits right across the shoulders and does not swallow the name on the back. This guide explains how our sizes are labelled, how to measure what you already own, and how to choose when someone falls between two sizes. It covers the senior’s jersey, every member of the escort line, and the posters, signs and banners in the range.

How our size labels work

Every adult jersey, tee, tank, hoodie and crewneck at Call Up is cut as a unisex size. Unisex sizing usually follows a standard men’s tee shape: straighter through the body and a little longer than many women’s cuts. If mom usually wears a women’s medium in fitted tees, a unisex small or medium is the likely match, but the measurement method below is a better guide than any rule of thumb.

Adult size labels and price add-ons
Size labelShown on the size buttons asPrice change
SmallSBase price
MediumMBase price
LargeLBase price
Extra largeXLBase price
2X large2XLPlus $2
3X large3XLPlus $2
4X large4XLPlus $4
5X large5XLPlus $4

The youth range is for little siblings walking in the escort line. The Little Sib Youth Jersey in The Escort Line comes in these sizes, all at the same price.

Youth size labels
Size labelShown on the size buttons asPrice change
Youth extra smallYXSSame price for all youth sizes
Youth smallYSSame price for all youth sizes
Youth mediumYMSame price for all youth sizes
Youth largeYLSame price for all youth sizes
Youth extra largeYXLSame price for all youth sizes

Youth sizes are labelled by size, not age, because children of the same age vary a lot. A tall ten-year-old may need YL while a small one fits YS. Measure a shirt the child already wears rather than going by age.

Why there are no measurements printed on this page

We will only publish garment measurements in inches or centimetres once they are confirmed for the exact blanks we print on. Different jersey cuts in the range, such as the V-neck, the button-front and the long sleeve crew with striped forearms, do not all measure the same at the same label. One chart for everything would mislead you. Each product page carries its own size chart once it is confirmed. If you need a number before you order, email support@callup.shop with the product name and size, and we will tell you what is confirmed for it.

The same goes for fabric and care. Fabric and care details of the blanks are confirmed by the store and shown on each product page. We do not describe fabrics we have not confirmed.

Measure a shirt you already own

The most reliable way to choose is to compare against something that already fits the person you are buying for. For a senior, the best reference is the tee or jersey they reach for first. For grandpa, it is the shirt he wears to the games. You need a flat surface, a tape measure and two minutes.

  1. Lay it flat. Put the shirt face up on a table or the floor. Smooth out wrinkles without stretching the fabric. Button any buttons.
  2. Chest width. Measure straight across from one side seam to the other, about one inch below the armpits. This is the width of the front only.
  3. Body length. Measure from the highest point of the shoulder, where the collar meets the shoulder seam, straight down to the bottom hem.
  4. Sleeve. For a short sleeve, measure from the shoulder seam to the sleeve end. For a long sleeve, measure from the shoulder seam to the cuff.
  5. Write it down. Note the three numbers and the person’s name, and compare them with the chart on the product page. Choose the size whose chest width is closest to, or just above, your shirt’s.

Measure the flat width, not around the body. A chart that lists chest width is measured the same flat way, so the numbers compare directly. If a chart lists a full chest circumference instead, double your flat measurement before you compare.

When it is a surprise and you cannot borrow a shirt

Buying in secret for a senior who must not find out? Look at the size label on two or three tees from their laundry pile and note which size appears most. If labels disagree, the most-worn shirt wins, because that is the fit they choose for themselves. Siblings and teammates’ parents are good allies too; they often know a size without asking. For grandparents who live far away, ask someone in the house to measure a favourite shirt flat and text you the chest width.

Ordering from Canada, Australia or New Zealand

Our labels are US unisex sizes. Australian and New Zealand clothing labels often use different numbering, and a leavers jersey from a local cohort order may be cut differently from ours. Do not convert by label alone. Measure a shirt flat in centimetres or inches and compare with the product’s chart. A Year 12 student who wears a size 12 or 14 in local women’s sizing, or an adult M in local men’s sizing, may land on a different US letter than expected.

Choosing between two sizes

If your shirt’s chest falls between two sizes on the chart, ask how the jersey will be worn on the night.

  • Over layers, on a cold field: choose the larger size. A jersey that pulls tight over a hoodie stretches the print across the back, and the name is the part everyone reads.
  • Under an open graduation gown: choose the size they wear in tees. A big jersey bunches under a gown and the name disappears into the folds.
  • As a class jersey worn on the 27th every month: pick the size they would wear every day. Most seniors want a relaxed fit, not a tight one.
  • As a keepsake for a parent: pick the parent’s everyday size. A jersey that fits gets worn again at the next game; one that does not stays in a drawer.

Still undecided and the night is close? Order both sizes and send the one that does not fit back within 60 days of delivery with the free return label. It costs you nothing in postage, and it removes the risk of running out of time for an exchange.

Wearing a jersey over a hoodie

Fall senior nights in October and early November can be cold once the sun goes down, and many seniors and parents want a hoodie underneath. A hoodie adds bulk through the chest, shoulders and arms. For that look, measure the hoodie itself laid flat, then choose a jersey at least one size larger than the hoodie’s chest width. Check the length as well; the jersey should cover the hoodie’s hem or sit just above it.

If warmth matters more than the jersey look, the Senior Night Pullover Hoodie in The Walk and the Family of a 2027 Senior Crewneck in The Escort Line are made for those nights. Choose them in the size the person wears in hoodies and sweatshirts.

Sizing a whole escort line

A family order usually mixes four or five sizes. Before you add the jerseys to your cart, make a short list: each person, their role on the back, and their size. For example, the senior in L, mom in M, dad in 2XL, little sister in YM and grandpa in XL. Then add each line with the right size and role. It sounds obvious, but the most common family mistake we see is every line left on the size picked for the first jersey.

Remember the add-ons: dad’s 2XL jersey is $2 more than the base price, and a 4XL or 5XL is $4 more. Youth sizes are one price whichever size you choose.

Fit notes for each jersey style

The range has several cuts, and the cut changes how a size feels when worn:

  • V-neck jersey: the classic number jersey shape; the V opens the collar, so it sits a touch looser at the neck.
  • Button-front jersey: a baseball-style shape that is worn open or closed; worn open over a tee, choose your usual size.
  • Long sleeve crew jersey with striped forearms: check sleeve length if the person has long arms.
  • Jersey tee and raglan tee: tee shapes for band, cheer, grad day and the 27th; size as you would any tee.
  • Tank jersey: open at the arms and good for warm graduation days in June.
  • Pullover hoodie and crewneck sweatshirt: layer pieces; size as you would any hoodie.

The size chart on each product page applies to that cut. Compare against the product you are actually buying, not the one you looked at earlier.

Posters, yard signs and banners

The pieces in Read It Out have no fit to worry about, but the right size depends on where they go.

Print sizes in the Read It Out range
ProductSizesWhere each size works
Now Walking cue card poster12×18 in, 18×24 in, 24×36 in12×18 for a bedroom wall or a table at the grad party; 24×36 to be seen from the bleachers
Called Up yard sign12×18 in, 18×24 in, 24×36 inSmaller for a window or porch; 24×36 for the front lawn so it reads from the street
Senior night gym wall banner2×4 ft, 3×6 ft2×4 for a locker room door or a fence; 3×6 for a gym wall or a stand railing

Posters ship rolled or flat. Frames, stakes and hanging hardware are not included unless the product page says so, so plan for a frame, a stake or cable ties before the night.

Five sizing mistakes we see before senior night

  1. Measuring around the body and comparing it with a flat chart. Flat width is half the circumference; mixing them up can put you two sizes out.
  2. Sizing for the senior they were in September. Seniors still grow, especially athletes in season. Measure a shirt they wear now.
  3. Forgetting the layer underneath. A jersey chosen in a warm kitchen can feel tight over a hoodie in the stands.
  4. Copying one size across the whole family. Check each line in the cart before you pay.
  5. Guessing a youth size from age. Measure the child’s own shirt; sizes are not ages.

Exchanges when the size is wrong

If a jersey arrives and does not fit, you have 60 days from delivery to return it for any reason, personalised jerseys included. We send a free return label and there is no restocking fee. For an exchange, email us with your order number and the size you need. When the night is close, it is usually faster to order the new size straight away and return the first one; the refund for the first is sent within 7 days of receiving it. The steps are on the returns and exchanges page, and timing for the new jersey is on shipping and delivery.

Still unsure?

Email support@callup.shop with the product, the person’s usual size, the flat chest width of a shirt that fits them, and how they plan to wear it. We reply within 24 hours on business days. You can also browse the FAQs, the help center or go straight back to the shop.