Nike Strength: Performance Fitness Solutions
Dedicated to helping athletes achieve their fitness goals through innovative equipment and apparel.
Size Conversion Charts
| Size | Chest (in) | Waist (in) |
|---|---|---|
| XS | 28-31.5 | 22.5-25.5 |
| S | 31.5-35 | 25.5-29 |
| M | 35-37.5 | 29-32 |
How to Measure
- Use a flexible measuring tape
- Measure chest at fullest part
- Measure waist at narrowest point
- Keep tape horizontal and snug but not tight