To pick the right Oregon State Beavers jersey size, measure your chest at its fullest point and the length of a favorite tee from shoulder seam to hem, then compare both numbers with the size options shown on the product page before you choose. That two-measurement habit, plus a quick look at how you plan to wear it, settles most sizing doubts before an order goes in.
What you need before you start
Gather three things: a soft sewing tape (a phone charger cable and a ruler work in a pinch), a shirt or hoodie that already fits the way you like, and a notepad. Do the measuring in a light T-shirt rather than over a sweater, because extra bulk adds an inch or two and can push you into a bigger size than you need.
Step-by-step: measuring your body
- Chest. Wrap the tape under your arms and across the widest part of your chest. Keep it level all the way around and relaxed, not cinched. Breathe normally and read the number.
- Shoulders. Have someone measure across your back from the edge of one shoulder to the other. This matters if you are between sizes and broad through the upper body.
- Torso length. Stand straight and measure from the highest point of your shoulder, near the collar, down to where you want the hem to sit. Some fans like the jersey to cover the belt; others prefer it shorter.
- Write it down. Record each number in inches. Taking every measurement twice and using the average cuts down on small mistakes.
Step-by-step: measuring a shirt you already own
Body numbers tell you your frame; a garment you love tells you your taste. Lay that shirt flat on a table and smooth out the wrinkles.
- Measure straight across the chest from armpit seam to armpit seam, then double it for the full circumference.
- Measure the length from the top of the shoulder seam to the bottom hem.
- Note whether you wear that shirt alone or over another layer.
Now you have two references: what your body needs and how roomy you prefer things. If the flat shirt measures well above your body chest number, you clearly like a relaxed cut, and that preference should guide your pick.
Reading the size options on the listing
Every Oregon State listing in this store shows its own set of size options on the product page. Look at those options with your numbers beside you. If the page offers a size guide, match your chest measurement first and treat length as the tiebreaker. If you see only size labels, use the shirt you measured: pick the label that matches the size printed on that shirt, then adjust up or down based on how you plan to wear the jersey.
When you are ordering a personalized piece such as this custom Oregon State Beavers name and number listing in orange, settle the size before you type any lettering. Follow the instructions on the product page for the name and number fields, and confirm the size selection is still correct on the final screen before checkout.
Three wearing plans and how they change your pick
Worn on its own
If the jersey will go over a plain tee on warm afternoons, stay close to your measured size. A cut that is too large tends to hang off the shoulders and bunch at the sides.
Layered over a hoodie
Cooler late-season games can push fans into layers. If you expect a hoodie underneath, measure yourself while wearing it, or add the difference between your hoodie and your tee to your chest number.
Bought for someone else
Borrow a shirt from their closet if you can and measure it flat, as described above. It is the least awkward way to get real numbers without spoiling a surprise.
Common sizing slips to avoid
- Measuring over a thick sweater and ending up with a jersey that swims on you.
- Guessing from a size label on a brand that runs very differently.
- Picking length alone and ignoring the chest, which is usually the deciding number.
- Forgetting to recheck the selected size after editing a custom name.
Quick checklist before you order
- Chest, shoulder and length numbers written down in inches.
- A flat measurement from a shirt you like.
- A decision on whether you will layer underneath.
- Size compared with the options on the product page.
- For custom pieces, name and number entered as the page instructs.
Once the jersey arrives, follow the care label to keep the fit and lettering looking the way they did on day one. If you want to compare other designs first, browse the full Oregon State Beavers jersey collection, which includes player listings such as a Damien Martinez #6 Orange 2023 listing and an Aidan Chiles #0 Orange 2023 listing alongside the custom option. The same measuring routine works for every one of them.

