





Helikon-Tex Urban Tactical Pants Flex
Helikon-Tex
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The Urban Tactical Pants Flex are Helikon-Tex's work and outdoor tactical trousers in their latest iteration: built from NyCo fabric (50% cotton / 50% nylon) with VersaStretch panels at high-stress areas, they weigh 626 g and combine a low-profile appearance with twelve pockets designed to distribute gear without creating visible bulges.
The central trade-off of these trousers lies in the fabric choice. NyCo offers better durability than pure cotton and handles moisture better than full nylon, but it is not water-repellent: it gets wet in rain and dries slowly. Anyone needing water protection will need to add an outer layer. On the other hand, the fabric breathes well during sustained effort and resists abrasion and scuffing better than most softshells. The VersaStretch panels at the crotch and lower back eliminate the typical restriction of rigid fabric when dropping into low positions or mounting a vehicle, without requiring extra cuts that would compromise structural integrity.
The waistband incorporates an elastic insert with an adjustable hook-and-loop closure, allowing fit adjustment without tools even when wearing protective gear or thermal layers. Belt loops accept belts up to 50 mm wide, making them compatible with the main tactical belt systems on the market. The leg hems feature a drawcord channel to adjust length and lock the fabric over footwear. The side cargo pockets have reinforced inner edges for mounting knife or torch clips, and two internal knee pockets are pre-fitted to accept third-party knee pad inserts.
Key points
- VersaStretch panels at the crotch and lower back allow a full range of movement without pulling or binding, useful in low shooting positions or when climbing.
- The elastic hook-and-loop waistband adjusts continuously: no fixed point that digs in when bending or wearing a 50 mm tactical belt.
- Twelve pockets in total, including two internal knee pockets for knee pads, allow gear to be carried spread across the body without overloading one side.
- NyCo resists abrasion better than cotton and breathes better than nylon, but should be paired with a waterproof layer in prolonged rain.
- The hem drawcord channel lets you lock the trousers over a boot or adjust them over low-cut shoes without any tailoring.
- A weight of 626 g for a trouser with this density of pockets and reinforcements.
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.






