LOWA Zephyr GTX Lo TF Boot
LOWA
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The Zephyr GTX Lo TF is a low-cut operational boot from LOWA designed for those working across varied terrain who need footwear that is lightweight, waterproof, and breathable at the same time. The upper combines suede leather and technical fabric to keep weight down without compromising abrasion resistance, making it suitable for daily professional use, hunting, and field shooting alike.
The GORE-TEX Extended Comfort Footwear membrane lining — alongside the GORE-TEX Professional version — blocks external water while venting the moisture produced by the foot, even during prolonged heat or humidity. It is worth understanding the trade-off: the low-cut ankle configuration provides greater mobility and faster donning compared to a high-cut model, but offers less lateral support on heavily broken terrain or when carrying substantial loads. Those who prioritise agility and quick movement over mixed terrain will find the low-cut construction to be the key advantage.
The LOWA MONOWRAP® three-dimensional frame wraps around the foot to distribute lateral stress, while the polyurethane midsole absorbs impact with each step. The LOWA CROSS outsole, with its self-cleaning lug pattern and in-house rubber compound, maintains grip on asphalt, gravel, packed dirt, and wet grass without needing frequent replacement. The DOUBLE INJECTION technology bonds the outsole and upper in a way that reduces junction points, limiting both overall weight and potential failure points over time.
Key points
- The GORE-TEX membrane keeps the foot dry even in wet conditions, without sacrificing breathability on warm days.
- The low-cut construction favours mobility and speed of movement; whether it is the right choice over a high-cut model depends on the terrain type and load carried.
- The LOWA MONOWRAP® frame distributes lateral forces, reducing fatigue on long and uneven routes.
- The LOWA CROSS outsole with self-cleaning lug pattern provides grip on mixed surfaces without mud packing into the grooves.
- The DOUBLE INJECTION construction reduces the joins between upper and outsole, lowering weight and critical wear points.
- Suede leather and technical fabric upper: abrasion-resistant and lighter than a full-grain leather construction.
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
Lowa
Technical Footwear
Lowa manufactures footwear for operational use, hiking, and extended wear, built with deep-lug outsoles and resolable constructions on higher-end models.






