Find your fit
This guide is for RUN FURTHER premium made-to-order performance running shirts, not our Basics range. Choose your size using your body chest measurement, rather than the dimensions of a shirt you already own.
How to measure your chest
- Stand naturally with your arms relaxed.
- Wrap a flexible tape measure around the fullest part of your chest, under your arms and level across your back.
- Keep the tape snug but not tight. Breathe normally and note your measurement.
- Compare your measurement with the table below.
Performance shirt size chart
These are body chest measurements, not finished garment measurements. These measurements are supplied by our performance apparel production partner.
| Size | Chest (cm) | Chest (inches) |
|---|---|---|
| 2XS | 88–91 | 34.6–35.8 |
| XS | 92–95 | 36.2–37.4 |
| S | 96–99 | 37.7–38.9 |
| M | 100–103 | 39.3–40.5 |
| L | 104–107 | 40.9–42.1 |
| XL | 108–111 | 42.5–43.7 |
| 2XL | 112–115 | 44.0–45.2 |
| 3XL | 116–119 | 45.6–46.8 |
| 4XL | 120–123 | 47.2–48.4 |
| 5XL | 124–129 | 48.8–50.7 |
| 6XL | 130–135 | 51.2–53.1 |
| 7XL | 136–141 | 53.5–55.5 |
Fit advice
Our performance running shirts are described as a regular fit. If your measurement falls between sizes, or you prefer a looser fit, please check with us before ordering rather than guessing. Small manufacturing variations can occur with made-to-order garments.
Need help?
Not sure which size to choose? Please contact us with your chest measurement and the product you are considering. We can help you check the appropriate sizing information before you order.
Shopping for everyday essentials? The Basics range uses a different sizing guide.