BARKU NITRIX NITRIX x STD – The Fastest Racing Orienteering Shoe. Speed. Precision . Unstoppable performance
BARKU NITRIX – built for orienteers who refuse to compromise. At just 220 grams, this is lightest and fastest metal-studded racing shoe ever – engineered for pure speed across the toughest terrains.
Superlight. Superstrong. FlightMatrix.
The BARKU NITRIX features our brand-new FlightMatrix™ upper – a revolutionary material developed to deliver ultra-lightweight durability, breathability, and a locked-in fit. This cutting-edge weave technology keeps your feet secure without adding unnecessary weight, allowing you to push your limits without distractions.
Precision Grip for Maximum Speed
Equipped with high-performance metal studs. Metal studs bite into mud, rock, and roots for total control. The aggressive outsole boosts acceleration and agility.
Race Faster. Win More.
Designed for elite orienteers, this shoe is made for one thing: winning. BARKU NITRIX is built for elite orienteers chasing victory.
- FlightMatrix™ upper
- 220g speed-ready weight (UK8)
- Metal studs for ultimate grip
- Narrow fit – maximum control at race speed
- 5mm drop
- colour – Neon yellow
- available sizes – UK 4–12
BARKU NITRIX – The Fastest Racing Orienteering Shoe Ever
We recommend choosing one size smaller in the Nitro model compared to your usual size in other Barku shoes.
The Nitro is designed as a lightweight race shoe with no extra support, ensuring maximum performance and comfort once the right size is selected.
Size Guide
▸ How to measure your foot
For the best fit, measure your foot at home before ordering. It takes 2 minutes.
1
Place a sheet of paper on the floor against a wall.
2
Put on the same socks you would wear with these shoes.
3
Stand on the paper with your heel touching the wall, foot straight.
4
Ask someone to mark the tip of your longest toe. Repeat both feet — use the longer measurement.
5
Measure heel to mark in cm. Find your size in the chart below. If between sizes, always go larger.
▸ Size chart
UK size
EU size
Foot length (cm)
UK 3.5
36.5
22.5 – 23.0
UK 4
37
23.0 – 23.5
UK 4.5
37.5
23.5 – 24.0
UK 5
38
24.0 – 24.5
UK 5.5
38.5
24.5 – 25.0
UK 6
39.5
25.0 – 25.3
UK 6.5
40
25.3 – 25.7
UK 7
40.5
25.7 – 26.2
UK 7.5
41.5
26.2 – 26.6
UK 8
42
26.6 – 27.0
UK 8.5
42.5
27.0 – 27.4
UK 9
43
27.4 – 27.9
UK 9.5
44
27.9 – 28.3
UK 10
44.5
28.3 – 28.7
UK 10.5
45
28.7 – 29.2
UK 11
45.5
29.2 – 29.6
UK 11.5
46.5
29.6 – 30.0
UK 12
47
30.0 – 30.4
If you are between sizes, always choose the larger size.
▸ Shoe fit
Barku shoes come in three fits to suit different foot shapes.
Narrow
Wide
Kids
Narrow — Luna, Mira, Race, Nitrix. Slimmed over the complete length of the foot with a straight toe line to accommodate the toes in a natural position.
Narrow
Wide
Kids
Wide — Raven. Spacious last to accommodate wider feet — approximately 1cm wider in the forefoot area than the narrow fit at UK8.
Narrow
Wide
Kids
Kids — Fox. Adapted to the anatomy of children where the ratio between length and width is smaller than adult feet — designed with space to grow.
Size Guide
▸ How to measure your foot
For the best fit, measure your foot at home before ordering. It takes 2 minutes.
Place a sheet of paper on the floor against a wall.
Put on the same socks you would wear with these shoes.
Stand on the paper with your heel touching the wall, foot straight.
Ask someone to mark the tip of your longest toe. Repeat both feet — use the longer measurement.
Measure heel to mark in cm. Find your size in the chart below. If between sizes, always go larger.
▸ Size chart
| UK size | EU size | Foot length (cm) |
|---|---|---|
| UK 3.5 | 36.5 | 22.5 – 23.0 |
| UK 4 | 37 | 23.0 – 23.5 |
| UK 4.5 | 37.5 | 23.5 – 24.0 |
| UK 5 | 38 | 24.0 – 24.5 |
| UK 5.5 | 38.5 | 24.5 – 25.0 |
| UK 6 | 39.5 | 25.0 – 25.3 |
| UK 6.5 | 40 | 25.3 – 25.7 |
| UK 7 | 40.5 | 25.7 – 26.2 |
| UK 7.5 | 41.5 | 26.2 – 26.6 |
| UK 8 | 42 | 26.6 – 27.0 |
| UK 8.5 | 42.5 | 27.0 – 27.4 |
| UK 9 | 43 | 27.4 – 27.9 |
| UK 9.5 | 44 | 27.9 – 28.3 |
| UK 10 | 44.5 | 28.3 – 28.7 |
| UK 10.5 | 45 | 28.7 – 29.2 |
| UK 11 | 45.5 | 29.2 – 29.6 |
| UK 11.5 | 46.5 | 29.6 – 30.0 |
| UK 12 | 47 | 30.0 – 30.4 |
If you are between sizes, always choose the larger size.
▸ Shoe fit
Barku shoes come in three fits to suit different foot shapes.
Narrow — Luna, Mira, Race, Nitrix. Slimmed over the complete length of the foot with a straight toe line to accommodate the toes in a natural position.
Wide — Raven. Spacious last to accommodate wider feet — approximately 1cm wider in the forefoot area than the narrow fit at UK8.
Kids — Fox. Adapted to the anatomy of children where the ratio between length and width is smaller than adult feet — designed with space to grow.
Focus on your route guided by a precise Str8 Original thumb compass
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