If you’ve ever added a Gildan hoodie to your cart and hesitated over “should I order a Large or an XL?”, you’re not alone. Gildan is one of the most widely used blank apparel brands in the world — favorite of custom apparel shops, screen printers, sports teams, and everyday shoppers alike — but its sizing isn’t identical across every model. A size Medium in the Gildan 18500 Heavy Blend hoodie won’t fit exactly like a Medium in the Gildan 1850 or a youth 18500B.
This guide breaks down the Gildan hoodie size chart in full detail: adult sizes, youth sizes, how to measure yourself correctly, whether Gildan hoodies run small or large, and how to decide between two sizes when you’re stuck in between. By the end, you’ll know exactly which size to order — no guessing required.
Why Gildan Hoodie Sizing Varies by Style
Gildan makes several different hoodie styles, and each one is cut slightly differently:
- Gildan 18500 – The Heavy Blend™ pullover hoodie, Gildan’s best-selling and most commonly printed-on hoodie.
- Gildan 1850 – A closely related Heavy Blend style used by many print-on-demand platforms.
- Gildan 18600 – The Heavy Blend Adult Sweat Vest / lighter alternative in the same family.
- Gildan 12500 – A fuller, slightly boxier cut that some wearers describe as running a size larger than the 18500.
- Gildan 18500B – The youth version of the Heavy Blend hoodie, sized for kids and teens.
Because the cut and finished garment measurements shift from model to model, always check the size chart for the specific product you’re buying rather than relying on a generic “Gildan size chart” from memory. Below are the most accurate, up-to-date charts for the most popular styles.
Gildan 18500 Heavy Blend Hoodie Size Chart (Adult)
The 18500 is Gildan’s flagship hooded sweatshirt — an 8.0 oz, 50/50 cotton-polyester heavy blend fleece with a roomy, classic unisex fit. It’s the hoodie most people mean when they search “Gildan hoodie size chart,” and it runs from XS up to 5XL depending on the retailer.
(Image suggestion: A flat-lay product photo of the Gildan 18500 hoodie with measurement arrows overlaid, placed directly above the table below to help readers visualize where each measurement is taken.)
| Size | Body Length (in) | Chest Width (in) | Sleeve Length (in) |
|---|---|---|---|
| S | 27 | 38 – 41 | 33.5 |
| M | 28 | 42 – 45 | 34.5 |
| L | 29 | 46 – 49 | 35.5 |
| XL | 30 | 50 – 53 | 36.5 |
| 2XL | 31 | 54 – 57 | 37.5 |
| 3XL | 32 | 58 – 61 | 38.5 |
| 4XL | 33 | 62 – 65 | 39.5 |
| 5XL | 34 | 66 – 69 | 40.5 |
How to read this chart: “Chest Width” is the full circumference of the garment measured around the fullest part of the chest, not your body measurement — most people will want their actual chest measurement to fall comfortably within that range, with a couple of inches of ease for a relaxed pullover fit. “Body Length” is measured from the highest point of the shoulder straight down to the bottom hem, and “Sleeve Length” runs from the center back of the collar to the cuff.
Keep in mind that most suppliers note a tolerance of about ±1 inch on these measurements, since fleece fabric can shift slightly during cutting and sewing.
Gildan 1850 / 185B Size Chart (Chest Measurements)
If you’re comparing the 1850 style, here’s how the chest measurements break down using the “half chest” method (measured flat, side to side, then doubled for full circumference):
| Size | Chest – Half Measure (in) | Chest – Full Measure (in) |
|---|---|---|
| S | 20 | 40 |
| M | 22 | 44 |
| L | 24 | 48 |
| XL | 26 | 52 |
| 2XL | 28 | 56 |
| 3XL | 30 | 60 |
This is essentially the same sizing logic as the 18500, just presented as a flat “half chest” number, which is how many print shops list garment specs internally.
Gildan Hoodie Size Chart in Centimeters
For shoppers outside the U.S. who prefer metric measurements, here’s the equivalent breakdown for the standard adult Heavy Blend hoodie:
| Size | Width (cm) | Length (cm) | Sleeve (cm) |
|---|---|---|---|
| S | 51 | 71 | 88 |
| M | 56 | 74 | 90 |
| L | 61 | 76 | 93 |
| XL | 66 | 79 | 95 |
| 2XL | 71 | 81 | 98 |
| 3XL | 76 | 84 | 100 |
| 4XL | 81 | 86 | 103 |
| 5XL | 86 | 88 | 103 |
Gildan Youth Hoodie Size Chart
Gildan’s youth hoodies (like the 18500B) are built for school-age kids, generally covering roughly ages 6 to 18, though fit always depends more on the child’s actual measurements than their age.
| Size | Chest Width (in) | Body Length (in) |
|---|---|---|
| XS | 16 | 19.75 |
| S | 17 | 21.25 |
| M | 18 | 22.5 |
| L | 19 | 24 |
| XL | 20 | 25.5 |
Tip for parents: Because kids grow quickly, many shoppers size up intentionally on youth hoodies to extend how long the garment stays wearable. If your child is between two sizes, or you want a hoodie that will last through a growth spurt, go with the larger size.
How to Measure Yourself for the Right Gildan Hoodie Size
Rather than guessing based on your usual T-shirt size, take two minutes to measure yourself — it’s the single most reliable way to get an accurate fit.
Step 1: Measure your chest. Wrap a soft tape measure around the fullest part of your chest, keeping it level under your arms and across your shoulder blades. Keep the tape snug but not tight — you should be able to slide a finger underneath it.
Step 2: Measure your preferred length. Measure from the top of your shoulder down to wherever you like a hoodie to hit — hip-length, for example, or slightly longer for an oversized look.
Step 3: Compare to the chart. Match your chest measurement to the “Chest Width” range in the size chart above. If you’re right between two sizes, use the sizing advice in the next section to break the tie.
Step 4: Cross-check with a hoodie you already own. Lay a hoodie that fits you well flat on a table and measure its width (armpit to armpit, doubled) and length (shoulder seam to hem). Compare those numbers directly to the Gildan chart — this is often more accurate than measuring your body, since it accounts for how you personally like your hoodies to fit.
Do Gildan Hoodies Run Small or Large?
In general, Gildan hoodies fit true to size, but there are a few nuances worth knowing:
- The 18500 fits close to a standard unisex Medium/Large sizing — most wearers find it accurate to the chart, though a small number of reviewers note it can feel slightly roomier than a fitted t-shirt in the same size.
- The 12500 tends to run a bit fuller than the 18500, so if you’ve worn a 12500 before, you may want to size down when switching to the 18500.
- Youth styles (18500B, 186B) can run inconsistently between models — some feel generous, others feel a touch small for the stated age range — so checking chest measurements matters more than relying on the age label.
- Torso length is the most common fit complaint. If you have a longer torso, double-check the “Body Length” column specifically, since chest width alone won’t tell you whether the hoodie will feel short.
Overall, Gildan hoodies are considered reliable and consistent for a budget-friendly, mass-produced blank — but always verify against the specific style’s chart before ordering, especially if you’re buying for a team, group, or bulk custom order.
Tips for Choosing Between Two Sizes
If your chest measurement falls right on the line between two sizes, consider these factors:
- Want a relaxed, oversized fit? Size up. Gildan hoodies are popular for the trendy “oversized” streetwear look, and sizing up one from your true measurement is a common styling choice.
- Layering over other clothing? Size up so the hoodie comfortably fits over a t-shirt or long sleeve.
- Want a closer, more fitted silhouette? Size down, but check the chest range carefully — you don’t want it so tight that it restricts movement across the shoulders.
- Printing a design on the front? A slightly looser fit (sizing up) can help the print surface lay flatter and avoid distortion across the chest.
Frequently Asked Questions
What is the most popular Gildan hoodie size? Medium and Large are the most commonly ordered sizes for the Gildan 18500, covering the average adult chest range of roughly 42–49 inches.
Are Gildan hoodie sizes unisex? Yes, the core Heavy Blend styles like the 18500 and 1850 are designed as unisex fits, though Gildan also offers women’s-specific activewear tops with a more tailored cut if you prefer a closer fit through the waist.
What’s the biggest size Gildan offers in hoodies? Many Gildan hoodie styles, including the 18500, are available up to 5XL, fitting up to roughly a 66–69 inch chest depending on the exact style and retailer.
How much tolerance is there in Gildan’s measurements? Most Gildan spec sheets list a tolerance of about ±1 inch on body length and chest measurements, since fleece garments can vary slightly in the finishing process.
Final Thoughts
The key to getting your Gildan hoodie size right the first time is simple: identify the exact style you’re buying, measure yourself (or a hoodie you already own), and compare those numbers directly against that style’s specific chart rather than a generic one. Because Gildan’s various hoodie models — the 18500, 1850, 12500, and youth 18500B — all have their own finished measurements, a “Medium” isn’t automatically the same size across the board.
Keep this guide bookmarked as a reference, and you’ll be able to confidently pick the right size whether you’re ordering one hoodie for yourself or placing a bulk order for a team, event, or custom print run.
