How to Choose the Right Size
Start with Your Measurements
Grab a soft tape measure (or a string and ruler) and take these two numbers:
- Chest: Measure around the fullest part of your chest, under your armpits, keeping the tape parallel to the floor.
- Length: From the highest point of your shoulder down to where you want the hem to hit.
Then compare against the size charts below.
Classic T-Shirt (Unisex Fit)
The Against the Rules Classic T-Shirt uses a relaxed unisex cut. Made from 100% ring-spun cotton, it's pre-shrunk, so you won't get surprises after the first wash. Most fans say it runs true to size for a comfortable, not-too-boxy feel.
| Size | Chest (inches) | Length (inches) | Sleeve (inches) |
| S | 34-36 | 27.5 | 8.5 |
| M | 38-40 | 28.5 | 9 |
| L | 42-44 | 29.5 | 9.5 |
| XL | 46-48 | 30.5 | 10 |
| 2XL | 50-52 | 31.5 | 10.5 |
If you're between sizes, size up for a looser fit or down for a trimmer look.
Premium Hoodie
The Against the Rules Premium Hoodie ($49.99) runs slightly roomier to allow for layering. It's fleece-lined with a spacious kangaroo pocket. Fans who like a snug fit often order one size down, while those who want full comfort stay true to size.
| Size | Chest (inches) | Length (inches) | Sleeve (inches) |
| S | 36-38 | 27 | 33 |
| M | 40-42 | 28 | 34 |
| L | 44-46 | 29 | 35 |
| XL | 48-50 | 30 | 36 |
Polo Shirt & Tank Top
The Against the Rules Polo Shirt ($34.99) fits like a classic polo - tailored but not tight. Go with your usual polo size. The Against the Rules Tank Top ($19.99) has a relaxed armhole and runs true to size, though some prefer sizing up for a more flowy summer vibe.
A Note on Fabric Differences
All our cotton tees (Classic and Polo) use 100% ring-spun cotton. They soften over time but shouldn't shrink significantly as they're pre-shrunk. The hoodie is a cotton-poly blend for durability and warmth.