Details: Measuring Yourself the Right Way
Before you click anything, grab a soft measuring tape. You'll need three numbers:
- Chest: Wrap the tape around the fullest part of your chest, keeping it level under your arms.
- Waist: Measure where your pants naturally sit, not where you wish they sat.
- Length: From the highest point of your shoulder down to where you want the hem.
Write those down. That's your baseline. Now let's match them to Nick's gear.
Nick Shirley Classic T-Shirt Sizing
This is the cornerstone of the merch line. The Nick Shirley Classic T-Shirt is $24.99 and comes in 100% ring-spun cotton, pre-shrunk, with a relaxed unisex fit. "Pre-shrunk" means what you see on the size chart is what you get after washing - no surprises.
| Size | Chest (in) | Waist (in) | Length (in) |
| S | 34-36 | 28-30 | 27 |
| M | 38-40 | 32-34 | 28 |
| L | 42-44 | 36-38 | 29 |
| XL | 46-48 | 40-42 | 30 |
| XXL | 50-52 | 44-46 | 31 |
Because it's a relaxed fit, most people can size down for a cleaner look. If you're between sizes and like your tees snug, go down. If you want room to breathe, stay true to your usual size.
I've been wearing the L in Nick's shirts, and it gives me space to move without looking sloppy. That's the same reason Nick designed these to pair with his morning routine videos - you can hit a stretch, grab a water bottle, and still look put together.
Nick Shirley Premium Hoodie Sizing
The Premium Hoodie is the go-to for cooler weather and late-night editing sessions. At $49.99, it's built with a heavier fleece that holds its shape. It fits closer to a standard hoodie, but the shoulders are cut a bit wider to match Nick's athletic build preference.
| Size | Chest (in) | Sleeve Length (in) | Length (in) |
| S | 36-38 | 32 | 26 |
| M | 40-42 | 33 | 27 |
| L | 44-46 | 34 | 28 |
| XL | 48-50 | 35 | 29 |
| XXL | 52-54 | 36 | 30 |
If you plan on layering this over a t-shirt, go with your normal size. If you want it to fit like Nick wears it on his 2026 "Grind Mode" livestreams - loose but not sloppy - size up once.
Nick Shirley Polo Shirt & Tank Top Sizing
Nick's polo shirt and tank top are the summer staples. The polo is more structured, so it runs true to size. The tank top has a slightly athletic cut - tighter in the chest, looser in the waist.
For the Nick Shirley Polo Shirt ($34.99), follow the same chest measurements as the classic tee but stay true to your regular size. No sizing down - the collar and sleeves are set to fit that way.
For the Nick Shirley Tank Top ($19.99), size up if you want an easy, breezy fit. The material is a cotton-poly blend that doesn't cling, but if you're between sizes, the larger size feels better in the heat.
The 2026 Summer Challenge Connection
Nick just wrapped the first week of his 2026 Summer Challenge, and he's been talking about how your gear should never slow you down. In the episode "Discipline Isn't Complicated," he said: "Comfort is a discipline, not a luxury. If your shirt is riding up every five seconds, you're not thinking about the work." That's why these pieces are designed the way they are. The relaxed fit isn't an accident - it's intentional.
So when you're ordering, think about what you're going to do in that shirt. Hit the gym? Go true to size. Sit in the edit bay for twelve hours? Size up for airflow.