Everything on this page works from your body measurements, not garment measurements. Take four numbers with a soft tape, and the charts below — or the What's my size? tool on every product page — convert them into your exact Strike20 size, with the right amount of wearing ease already calculated in for each cut.
Use a soft tailor's tape over bare skin or a thin shirt. Keep it flat and level all the way around — snug, never tight. If a number surprises you, take it twice: a tape that slips 2 cm can change your size.
Most size charts print garment measurements and leave the math to you. Ours does the opposite. We rebuilt this whole system after watching too many customers order from flat garment numbers and get it wrong — the math below is now inside every chart and inside the What's-my-size tool. Here is exactly what happens to your numbers.
A chart's "chest 58 cm" means the shirt measures 58 cm laid flat — 116 cm around. Your body circumference must be compared with the doubled number, never the flat one. Comparing chest-to-flat is the #1 cause of ordering two sizes too big.
A shirt exactly your chest size would pin your arms. Each cut carries its own ease: regular combat shirts run about 8 cm over body, the fitted ShadowX about 3 cm, and jackets about 14 cm so they layer over a shirt or soft armor. The charts subtract this for you.
Every Strike20 pants line uses an elastic waistband that measures smaller than your body flat and expands to grip. So a 97 cm waist correctly wears a band marked 86.5 cm flat. Follow the body-measurement column in the pants charts — the flat number is meant to be below your waist.
After the size is fixed by chest or waist, your height, arm length and leg length are checked against that size's garment length, sleeve reach and outseam. Long arms can move you up a size so the cuff reaches your wrist; nothing ever moves you down.
Each chart has two halves. The left columns are the factory's own measurements — the garment measured flat on a table, identical to the printed factory chart. The right columns are our conversion: the body measurements that size actually fits, with the wearing ease already applied. The What's-my-size tool runs this exact conversion.
Find the row containing your chest measurement — the garment column shows what the shirt itself measures around; the difference is your wearing ease.
Also used by the CoolingX Uniform top. View product →
| Size | Factory: chest flat (cm) | Factory: length (cm) | Your chest (cm) | Your chest (in) |
|---|---|---|---|---|
| S | 52 | 70.5 | ≤ 96 | ≤ 37.8 |
| M | 54 | 72 | 96–100 | 37.8–39.4 |
| L | 56 | 73.5 | 100–104 | 39.4–40.9 |
| XL | 58 | 75.5 | 104–108 | 40.9–42.5 |
| 2XL | 60 | 77.5 | 108–112 | 42.5–44.1 |
| 3XL | 62 | 79.5 | 112–116 | 44.1–45.7 |
| 4XL | 64 | 79.5 | 116–120 | 45.7–47.2 |
| 5XL | 66 | 81 | 120–124 | 47.2–48.8 |
| 6XL | 68 | 81 | 124–128 | 48.8–50.4 |
Our most fitted cut — sized for a close, professional silhouette. View product →
| Size | Factory: chest flat (cm) | Factory: length (cm) | Your chest (cm) | Your chest (in) |
|---|---|---|---|---|
| XS | 47.5 | 69 | ≤ 92 | ≤ 36.2 |
| S | 49.5 | 70.5 | 92–96 | 36.2–37.8 |
| M | 51.5 | 72 | 96–100 | 37.8–39.4 |
| L | 53.5 | 73.5 | 100–104 | 39.4–40.9 |
| XL | 55.5 | 75.5 | 104–108 | 40.9–42.5 |
| 2XL | 57.5 | 77.5 | 108–112 | 42.5–44.1 |
| 3XL | 59.5 | 79.5 | 112–116 | 44.1–45.7 |
| 4XL | 61.5 | 80 | 116–120 | 45.7–47.2 |
Short-sleeve. Same chest ladder as CoolingX. Also fits the CombatFlex shirt. View product →
| Size | Factory: chest flat (cm) | Factory: length (cm) | Your chest (cm) | Your chest (in) |
|---|---|---|---|---|
| S | 52 | 70.5 | ≤ 96 | ≤ 37.8 |
| M | 54 | 72 | 96–100 | 37.8–39.4 |
| L | 56 | 73.5 | 100–104 | 39.4–40.9 |
| XL | 58 | 75.5 | 104–108 | 40.9–42.5 |
| 2XL | 60 | 77.5 | 108–112 | 42.5–44.1 |
| 3XL | 62 | 79.5 | 112–116 | 44.1–45.7 |
| 4XL | 64 | 80 | 116–120 | 45.7–47.2 |
Also used by the EmberX Uniform top and both GhostStrike MultiCam tops. View product →
| Size | Factory: chest flat (cm) | Factory: length (cm) | Your chest (cm) | Your chest (in) |
|---|---|---|---|---|
| S | 53 | 70.5 | ≤ 98 | ≤ 38.6 |
| M | 55 | 72 | 98–102 | 38.6–40.2 |
| L | 57 | 73.5 | 102–106 | 40.2–41.7 |
| XL | 59 | 75.5 | 106–110 | 41.7–43.3 |
| 2XL | 61 | 77.5 | 110–114 | 43.3–44.9 |
| 3XL | 63 | 79.5 | 114–118 | 44.9–46.5 |
| 4XL | 65 | 79.5 | 118–122 | 46.5–48 |
| 5XL | 67 | 81 | 122–126 | 48–49.6 |
Jackets are cut roomier on purpose — about 14 cm over body — to fit over a combat shirt or soft armor. Use your resting chest; do not size down.
Extra room built in for layering over a shirt or soft armor. View product →
| Size | Factory: chest flat (cm) | Factory: length (cm) | Your chest (cm) | Your chest (in) |
|---|---|---|---|---|
| S | 56 | 68 | ≤ 98 | ≤ 38.6 |
| M | 58 | 70 | 98–102 | 38.6–40.2 |
| L | 60 | 72 | 102–106 | 40.2–41.7 |
| XL | 62 | 74 | 106–110 | 41.7–43.3 |
| 2XL | 64 | 76 | 110–114 | 43.3–44.9 |
| 3XL | 66 | 78 | 114–118 | 44.9–46.5 |
| 4XL | 68 | 80 | 118–122 | 46.5–48 |
Extra room built in for layering over a shirt or soft armor. View product →
| Size | Factory: chest flat (cm) | Factory: length (cm) | Your chest (cm) | Your chest (in) |
|---|---|---|---|---|
| S | 56 | 68 | ≤ 98 | ≤ 38.6 |
| M | 58 | 70 | 98–102 | 38.6–40.2 |
| L | 60 | 72 | 102–106 | 40.2–41.7 |
| XL | 62 | 74 | 106–110 | 41.7–43.3 |
| 2XL | 64 | 76 | 110–114 | 43.3–44.9 |
| 3XL | 66 | 78 | 114–118 | 44.9–46.5 |
| 4XL | 68 | 80 | 118–122 | 46.5–48 |
All pants use stretch waistbands: the flat garment waist sits below your body measurement and expands. Find the row containing your waist at the pelvic bone.
Stretch waistband — also used by the CoolingX Uniform bottoms. View product →
| Size | Factory: waist flat (cm) | Factory: outseam (cm) | Your waist (cm) | Your waist (in) |
|---|---|---|---|---|
| S | 74.5 | 102 | ≤ 87.5 | ≤ 34.4 |
| M | 78.5 | 104 | 87.5–91.5 | 34.4–36 |
| L | 82.5 | 106 | 91.5–95.5 | 36–37.6 |
| XL | 86.5 | 108 | 95.5–99.5 | 37.6–39.2 |
| 2XL | 90.5 | 110 | 99.5–103.5 | 39.2–40.7 |
| 3XL | 94.5 | 111 | 103.5–107.5 | 40.7–42.3 |
| 4XL | 98.5 | 111 | 107.5–111.5 | 42.3–43.9 |
| 5XL | 102.5 | 113 | 111.5–115.5 | 43.9–45.5 |
| 6XL | 106.5 | 113 | 115.5–119.5 | 45.5–47 |
Stretch waistband — also used by the ShadowX Uniform bottoms. View product →
| Size | Factory: waist flat (cm) | Factory: outseam (cm) | Your waist (cm) | Your waist (in) |
|---|---|---|---|---|
| XS | 70.5 | 100 | ≤ 83.5 | ≤ 32.9 |
| S | 74.5 | 102 | 83.5–87.5 | 32.9–34.4 |
| M | 78.5 | 104 | 87.5–91.5 | 34.4–36 |
| L | 82.5 | 106 | 91.5–95.5 | 36–37.6 |
| XL | 86.5 | 108 | 95.5–99.5 | 37.6–39.2 |
| 2XL | 90.5 | 110 | 99.5–103.5 | 39.2–40.7 |
| 3XL | 94.5 | 111 | 103.5–107.5 | 40.7–42.3 |
| 4XL | 98.5 | 111 | 107.5–111.5 | 42.3–43.9 |
Stretch waistband — also fits GhostStrike MultiCam pants and both suits' bottoms. View product →
| Size | Factory: waist flat (cm) | Factory: outseam (cm) | Your waist (cm) | Your waist (in) |
|---|---|---|---|---|
| S | 76 | 102 | ≤ 89 | ≤ 35 |
| M | 80 | 104 | 89–93 | 35–36.6 |
| L | 84 | 106 | 93–97 | 36.6–38.2 |
| XL | 88 | 108 | 97–101 | 38.2–39.8 |
| 2XL | 92 | 110 | 101–105 | 39.8–41.3 |
| 3XL | 96 | 111 | 105–109 | 41.3–42.9 |
| 4XL | 100 | 111 | 109–113 | 42.9–44.5 |
| 5XL | 104 | 113 | 113–117 | 44.5–46.1 |
Stretch waistband. This ladder starts one step larger than our other pants. View product →
| Size | Factory: waist flat (cm) | Factory: outseam (cm) | Your waist (cm) | Your waist (in) |
|---|---|---|---|---|
| S | 79 | 103 | ≤ 92 | ≤ 36.2 |
| M | 83 | 105 | 92–96 | 36.2–37.8 |
| L | 87 | 107 | 96–100 | 37.8–39.4 |
| XL | 91 | 109 | 100–104 | 39.4–40.9 |
| 2XL | 95 | 111 | 104–108 | 40.9–42.5 |
| 3XL | 99 | 112 | 108–112 | 42.5–44.1 |
| 4XL | 103 | 112 | 112–116 | 44.1–45.7 |
The automatic tool covers the common cases. These are the situations it doesn't ask about — and what to do in each one.
Shirts must close over your widest point. If your stomach measures more than your chest, run the tape around the fullest part of your midsection and use that number in the chest column instead. The shoulders will run slightly roomy — that beats a shirt that gaps at the buttons.
If shirts usually fit your chest but bind across the upper back, take your normal chest size and choose the Loose option in the tool — or go one size up in the charts. Tactical cuts carry their room in the body, not the shoulders.
Use a phone-charger cable or a piece of string: wrap it, pinch the meeting point, then lay it against a rigid ruler or a tile edge. Avoid measuring a garment you own — its own ease will mislead the chart by a full size.
If your measurement is above the largest size in any table, we can usually arrange a custom order directly with the factory. Message us on WhatsApp with the garment you want plus your chest or waist number.
Ordering uniforms for a unit or company? Send each member's chest, waist and height — a simple list is enough — and we'll return a per-person size sheet before you order, mixed sizes included. Contact us to set it up.
Wash cold, close all hook-and-loop panels first, and hang dry. High-heat drying is what shrinks ripstop blends — avoid it and the size you bought stays the size you wear.
Still unsure after all of this? Send us your measurements on WhatsApp and a human will size you personally — no tool involved.
Two numbers do most of the work: your chest circumference for shirts, jackets and uniform tops, and your waist circumference for pants. Height, arm length and leg length fine-tune the recommendation but never change it by more than one size.
Measure your body. Every Strike20 size chart converts body measurements into sizes for you — the wearing ease is already calculated in. Measuring an old garment adds its unknown ease on top of ours and usually lands you one size too big.
Either. Our tables show both, and the What's-my-size tool on every product page has a cm/in switch. If you convert manually, 1 inch = 2.54 cm.
The label ranges are aligned across our lines, so most people get the same letter everywhere. But the garments are cut differently: ShadowX is our most fitted shirt, CoolingX and SecurityS are regular, and the jackets are cut roomy for layering. Same size letter, different intended fit.
All Strike20 pants use an elastic waistband that measures smaller flat than your body and expands to grip securely. That is why the flat waist number printed on the chart is below your body measurement — it is supposed to be. Follow the body-measurement column, not the flat garment column.
Take the larger size for shirts and jackets — tactical tops are cut to move with you, and one size of extra room beats a tight chest. For pants, the stretch waistband covers the in-between zone, so take the size whose range contains your waist.
Enter your arm length (base of neck, over the shoulder, to the wrist bone) in the What's-my-size tool. If your sleeves need it, the tool sizes you up so the cuff reaches your wrist — it never sizes you down.
Yes — they are cut to stack slightly over the boot so the hem never rides up when you crouch or climb. If you prefer a cleaner break, a simple hem works; the tool warns you when a size will run notably long on your legs.
If the size isn't right, you have 30 days to exchange or return it in resalable condition for a full product refund. Order the size the chart says — the risk is on us, not on your tape measure.
Every Strike20 product page has a What's my size? button. Enter your measurements once and it runs everything on this page for that exact garment — ease, stretch waistband, sleeve reach and length — and tells you your size with the reasoning spelled out.