Over a thin shirt, at the fullest point. Arms relaxed at sides. Tape horizontal; don't pull tight.
Around the narrowest part of the torso, below the ribcage. Keep the tape level.
Around the fullest part of the bicep, arm relaxed.
| Measurement | Inches | Centimetres |
|---|---|---|
| Neck | 15–20" | 38–51 cm |
| Chest | 34–40" | 86–102 cm |
| Waist | 32–38" | 81–97 cm |
| Shoulder width | 13.5" | 34 cm |
| Body length | 20" | 51 cm |
| Sleeve length | 26" | 66 cm |
| Arm opening (fits upper arm up to) | 18" | 46 cm |
Fits best in the 34–38" chest range. If your chest is at the top of the range and you want firm restraint, consider sizing up.
Full measurements coming soon. The (L) is cut larger than the (M) throughout. If you're considering it, email help@kbd.com with your chest measurement and we'll confirm fit within one business day.
| Measurement | Inches | Centimetres |
|---|---|---|
| Neck | 13–18" | 33–46 cm |
| Waist / underbust | 25.5–32" | 65–81 cm |
| Shoulder width | 15" | 38 cm |
| Back length | 6–8" | 15–20 cm |
| Sleeve length | 26–27" | 66–69 cm |
| Arm opening (fits upper arm up to) | 16" | 41 cm |
| Body strap (removable) | 37" | 95 cm |
The half jacket runs slightly smaller than a full jacket at the same label. If you're unsure between (S) and (M), the (M) is the safer bet.
Full measurements coming soon. The (M) is cut larger than the (S) and fits medium-to-larger frames. Email help@kbd.com with your measurements and we'll confirm fit within one business day.
Size up. Tight is the wrong fit for a jacket. The body needs room for movement, adjustment, and breathing under load. The straps tighten more than they loosen, so erring toward the larger measurement gives you range to fine-tune.
If your chest sits between two sizes, the question is the fit you want. Tighter and more structured? Go down. Looser and more forgiving? Go up. For a first jacket, up is the safer default.
Still unsure? Send us a message with your chest measurement and the jacket you're considering. We'll tell you what we'd pick. We reply within one business day.