Jacket Size Guide (UK)
How to choose: pick your size based on your Chest first. Then check the detailed measurements below for a more precise fit.
How to measure your chest:
• Wrap a tape measure around the fullest part of your chest, just under your armpits.
• Keep the tape level and snug but not tight.
• If you're between sizes, go up for a more comfortable fit — this jacket has a fitted tactical cut.
Quick size pick (Chest)
| Size | Chest (in) | Chest (cm) |
|---|---|---|
| S | 36–38 | 91–96 |
| M | 38–40 | 96–101 |
| L | 40–42 | 101–107 |
| XL | 42–44 | 107–112 |
| 2XL | 44–46 | 112–117 |
| 3XL | 46–48 | 117–122 |
| 4XL | 48–50 | 122–127 |
Detailed measurements (tap to expand)
Size S — Chest 91–96 cm (36–38 in)
Chest (garment)116 cm (45.7 in)
Back length75 cm (29.5 in)
Sleeve length82 cm (32.3 in)
Size M — Chest 96–101 cm (38–40 in)
Chest (garment)120 cm (47.2 in)
Back length75 cm (29.5 in)
Sleeve length83 cm (32.7 in)
Size L — Chest 101–107 cm (40–42 in)
Chest (garment)124 cm (48.8 in)
Back length75.5 cm (29.7 in)
Sleeve length84.5 cm (33.3 in)
Size XL — Chest 107–112 cm (42–44 in)
Chest (garment)128 cm (50.4 in)
Back length75.5 cm (29.7 in)
Sleeve length86 cm (33.9 in)
Size 2XL — Chest 112–117 cm (44–46 in)
Chest (garment)132 cm (52 in)
Back length76 cm (29.9 in)
Sleeve length87.5 cm (34.4 in)
Size 3XL — Chest 117–122 cm (46–48 in)
Chest (garment)136 cm (53.5 in)
Back length75.5 cm (29.7 in)
Sleeve length89 cm (35 in)
Size 4XL — Chest 122–127 cm (48–50 in)
Note: 4XL measurements below are guided estimates based on the sizing progression. Chest is the main reference.
Chest (garment)140 cm (55.1 in)
Back length76 cm (29.9 in)
Sleeve length90.5 cm (35.6 in)
Quick tips:
• If you're between sizes, choose the bigger size for a more comfortable fit.
• Measurements may vary by 1–3 cm due to manual measuring.
• "Chest (garment)" = the actual jacket measurement. Your body chest should be 18–22 cm less for a proper tactical fit.