







Helikon-Tex SFU Next Mk2 PolyCotton Stretch Ripstop Trousers
Helikon-Tex
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The SFU Next Mk2 are tactical trousers in stretch polycotton ripstop — 48% cotton, 50% polyester, 2% elastane — designed for those who need freedom of movement without sacrificing abrasion resistance. The cut has been redesigned compared to the previous version: straighter and more structured, suited to both field use and everyday operational contexts.
The elastane content is what sets these apart from conventional ripstop: the fabric moves with the body rather than against it, which means less friction at the knees when crouching and less pull at the hips when climbing over surfaces. The inner lining in 90% polyester and 10% cotton reduces direct chafing during prolonged activity.
The pocket layout is designed not to interfere with kit carried at the waist: the large side cargo pockets, closed with hook-and-loop, offer real carrying capacity without sagging when empty; the two front bellows pockets are sized to fit most current smartphones. The knee reinforcements are shaped to accept optional protective inserts — a detail that improves protection without adding fixed bulk. The waist adjusts laterally via hook-and-loop tabs, allowing a precise fit without any modification to the belt. Worth noting: the button fly is quieter and more durable than an exposed zip, but takes a few seconds longer than a quick-release system.
Key features
- Stretch ripstop fabric with elastane: abrasion resistance and freedom of movement in the same trouser
- Side cargo pockets with hook-and-loop closure: high capacity without bulk when empty
- Front bellows pockets sized for smartphones: storage without an additional pouch
- Shaped knee reinforcements for optional inserts: adjustable protection to suit the task
- Lateral waist adjustment with hook-and-loop: quick fit without modifying the belt
- Redesigned straight cut compared to the previous version: compatible with holsters and accessories worn at the waist
In the box
- Helikon-Tex SFU Next Mk2 trousers
Specifications
Sizes
TROUSER SIZE GUIDE
The Viper trouser size listed on the site refers to the waist measurement in inches. To find the right size, simply check which waist measurement corresponds to your size. For example, an Italian size 46 corresponds to a 32" waist, so you should select size 32 on the site. You can also choose to measure your own waist and select the corresponding size. If your waist measurement is 90 cm, for instance, you should select the corresponding size in inches, which is 36". Contact us via chat or email with any questions. The size shown on the site corresponds to the waist measurement in inches.
| International | VIPER SIZE (waist in inches) |
Waist in CM | UK | FR | IT | ESP |
|---|---|---|---|---|---|---|
| XXS | 26-28 | 66-71 | 32 | 38 | 42 | 36 |
| XS | 28-30 | 71-76 | 34 | 40 | 44 | 40 |
| S | 30-32 | 76-81 | 36 | 42 | 46 | 44 |
| M | 32-34 | 81-86 | 38 | 44 | 48 | 48 |
| L | 34-36 | 86-91 | 40 | 46 | 50 | 52 |
| XL | 36-38 | 91-96 | 42 | 48 | 52 | 56 |
| XXL - 2XL | 38-40 | 96-101 | 44 | 50 | 54 | 60 |
| XXXL - 3XL | 40-41 | 100-104 | 46 | 52 | 56 | 64 |
| XXXXL - 4XL | 41-43 | 105-109 | 48 | 54 | 58 | 68 |
FOOTWEAR SIZE GUIDE
| TYPE | SIZES | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| EU/IT | 38 | 38.5 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46.5 | 48.5 |
| UK | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 10 | 11 | 12 | 13.5 |
| USA | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 10.5 | 11.5 | 12.5 | 14 |
| JP | 24 | 24.5 | 25 | 25.5 | 26 | 26.5 | 27.5 | 28.5 | 29.5 | 30.5 | 31.5 |
| MEX | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 9 | 10 | 11 | 12.5 |
| BR | 36 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 46 |
| AU | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 10 | 11 | 12 | 13.5 |
Marca
Helikon-Tex
Technical clothing, field equipment and carry systems by Helikon-Tex. It is the most represented brand in the catalogue for outdoor and tactical gear, with over seven hundred product references.






