Overview
Originally launched in 2013, the XT-6 has been the preferred footwear of world class athletes to run ultra-distance races in the harshest of conditions. It now returns with updated colours and materials.
Reviews
Men's Footwear
Calculate your own measurements, then select your product size
Our wide fitting models (X-ULTRA WIDE, SPEEDCROSS WIDE, XA PRO WIDE) have approx.+12mm increase in forefoot volume vs standard fit
ORDER SIZE | FOOT LENGTH (INCH) | EUR | US | JP |
3.5 UK | 8.5 | 36 | 4 M | 22 |
4 UK | 8.7 | 36 2/3 | 4.5 M | 22.5 |
4.5 UK | 8.9 | 37 1/3 | 5 M | 23 |
5 UK | 9.1 | 38 | 5.5 M | 23.5 |
5.5 UK | 9.3 | 38 2/3 | 6 M | 24 |
6 UK | 9.4 | 39 1/3 | 6.5 M | 24.5 |
6.5 UK | 9.6 | 40 | 7 M | 25 |
7 UK | 9.8 | 40 2/3 | 7.5 M | 25.5 |
7.5 UK | 10 | 41 1/3 | 8 M | 26 |
8 UK | 10.2 | 42 | 8.5 M | 26.5 |
8.5 UK | 10.4 | 42 2/3 | 9 M | 27 |
9 UK | 10.6 | 43 1/3 | 9.5 M | 27.5 |
9.5 UK | 10.8 | 44 | 10 M | 28 |
10 UK | 11 | 44 2/3 | 10.5 M | 28.5 |
10.5 UK | 11.2 | 45 1/3 | 11 M | 29 |
11 UK | 11.4 | 46 | 11.5 M | 29.5 |
11.5 UK | 11.6 | 46 2/3 | 12 M | 30 |
12 UK | 11.8 | 47 1/3 | 12.5 M | 30.5 |
12.5 UK | 12 | 48 | 13 M | 31 |
13 UK | 12.2 | 48 2/3 | 13.5 M | 31.5 |
13.5 UK | 12.4 | 49 1/3 | 14 M | 32 |
14 UK | 12.6 | 50 | 14.5 M | 32.5 |
14.5 UK | 12.8 | 50 2/3 | 15 M | 33 |
Our wide fitting models (X-ULTRA WIDE, SPEEDCROSS WIDE, XA PRO WIDE) have approx.+12mm increase in forefoot volume vs standard fit
ORDER SIZE | FOOT LENGTH (CM) | EUR | US | JP |
3.5 UK | 21.5 | 36 | 4 M | 22 |
4 UK | 22 | 36 2/3 | 4.5 M | 22.5 |
4.5 UK | 22.5 | 37 1/3 | 5 M | 23 |
5 UK | 23 | 38 | 5.5 M | 23.5 |
5.5 UK | 23.5 | 38 2/3 | 6 M | 24 |
6 UK | 24 | 39 1/3 | 6.5 M | 24.5 |
6.5 UK | 24.5 | 40 | 7 M | 25 |
7 UK | 25 | 40 2/3 | 7.5 M | 25.5 |
7.5 UK | 25.5 | 41 1/3 | 8 M | 26 |
8 UK | 26 | 42 | 8.5 M | 26.5 |
8.5 UK | 26.5 | 42 2/3 | 9 M | 27 |
9 UK | 27 | 43 1/3 | 9.5 M | 27.5 |
9.5 UK | 27.5 | 44 | 10 M | 28 |
10 UK | 28 | 44 2/3 | 10.5 M | 28.5 |
10.5 UK | 28.5 | 45 1/3 | 11 M | 29 |
11 UK | 29 | 46 | 11.5 M | 29.5 |
11.5 UK | 29.5 | 46 2/3 | 12 M | 30 |
12 UK | 30 | 47 1/3 | 12.5 M | 30.5 |
12.5 UK | 30.5 | 48 | 13 M | 31 |
13 UK | 31 | 48 2/3 | 13.5 M | 31.5 |
13.5 UK | 31.5 | 49 1/3 | 14 M | 32 |
14 UK | 32 | 50 | 14.5 M | 32.5 |
14.5 UK | 32.5 | 50 2/3 | 15 M | 33 |
- Place a sheet of paper on the floor and against a wall
- Make sure you are wearing the same socks that you would normally wear with this type of shoe
- Wearing these socks, stand on the sheet of paper with your foot perpendicular to the wall and your heel against the wall.
- Then use a pen to draw a line just in front of your big toe. Repeat for both feet and take the longer distance to determine your size.
- Using a ruler, measure the distance between the wall and the line you drew to find your size.
Women's Footwear
Calculate your own measurements, then select your product size
Our wide fitting models (X-ULTRA WIDE, SPEEDCROSS WIDE, XA PRO WIDE) have approx.+12mm increase in forefoot volume vs standard fit
ORDER SIZE | FOOT LENGTH (INCH) | EUR | US | JP |
3.5 UK | 8.5 | 36 | 5 | 22 |
4 UK | 8.7 | 36 2/3 | 5.5 | 22.5 |
4.5 UK | 8.9 | 37 1/3 | 6 | 23 |
5 UK | 9.1 | 38 | 6.5 | 23.5 |
5.5 UK | 9.3 | 38 2/3 | 7 | 24 |
6 UK | 9.4 | 39 1/3 | 7.5 | 24.5 |
6.5 UK | 9.6 | 40 | 8 | 25 |
7 UK | 9.8 | 40 2/3 | 8.5 | 25.5 |
7.5 UK | 10 | 41 1/3 | 9 | 26 |
8 UK | 10.2 | 42 | 9.5 | 26.5 |
8.5 UK | 10.4 | 42 2/3 | 10 | 27 |
9 UK | 10.6 | 43 1/3 | 10.5 | 27.5 |
9.5 UK | 10.8 | 44 | 11 | 28 |
10 UK | 11 | 44 2/3 | 11.5 | 28.5 |
10.5 UK | 11.2 | 45 1/3 | 12 | 29 |
11 UK | 11.4 | 46 | 12.5 | 29.5 |
11.5 UK | 11.6 | 46 2/3 | 13 | 30 |
12 UK | 11.8 | 47 1/3 | 13.5 | 30.5 |
12.5 UK | 12 | 48 | 14 | 31 |
13 UK | 12.2 | 48 2/3 | 14.5 | 31.5 |
13.5 UK | 12.4 | 49 1/3 | 15 | 32 |
14 UK | 12.6 | 50 | 15.5 | 32.5 |
14.5 UK | 12.8 | 50 2/3 | 16 | 33 |
Our wide fitting models (X-ULTRA WIDE, SPEEDCROSS WIDE, XA PRO WIDE) have approx.+12mm increase in forefoot volume vs standard fit
ORDER SIZE | FOOT LENGTH (CM) | EUR | US | JP |
3.5 UK | 21.5 | 36 | 5 | 22 |
4 UK | 22 | 36 2/3 | 5.5 | 22.5 |
4.5 UK | 22.5 | 37 1/3 | 6 | 23 |
5 UK | 23 | 38 | 6.5 | 23.5 |
5.5 UK | 23.5 | 38 2/3 | 7 | 24 |
6 UK | 24 | 39 1/3 | 7.5 | 24.5 |
6.5 UK | 24.5 | 40 | 8 | 25 |
7 UK | 25 | 40 2/3 | 8.5 | 25.5 |
7.5 UK | 25.5 | 41 1/3 | 9 | 26 |
8 UK | 26 | 42 | 9.5 | 26.5 |
8.5 UK | 26.5 | 42 2/3 | 10 | 27 |
9 UK | 27 | 43 1/3 | 10.5 | 27.5 |
9.5 UK | 27.5 | 44 | 11 | 28 |
10 UK | 28 | 44 2/3 | 11.5 | 28.5 |
10.5 UK | 28.5 | 45 1/3 | 12 | 29 |
11 UK | 29 | 46 | 12.5 | 29.5 |
11.5 UK | 29.5 | 46 2/3 | 13 | 30 |
12 UK | 30 | 47 1/3 | 13.5 | 30.5 |
12.5 UK | 30.5 | 48 | 14 | 31 |
13 UK | 31 | 48 2/3 | 14.5 | 31.5 |
13.5 UK | 31.5 | 49 1/3 | 15 | 32 |
14 UK | 32 | 50 | 15.5 | 32.5 |
14.5 UK | 32.5 | 50 2/3 | 16 | 33 |
- Place a sheet of paper on the floor and against a wall
- Make sure you are wearing the same socks that you would normally wear with this type of shoe
- Wearing these socks, stand on the sheet of paper with your foot perpendicular to the wall and your heel against the wall.
- Then use a pen to draw a line just in front of your big toe. Repeat for both feet and take the longer distance to determine your size.
- Using a ruler, measure the distance between the wall and the line you drew to find your size.
Unisex Footwear
Calculate your own measurements, then select your product size
Our wide fitting models (X-ULTRA WIDE, SPEEDCROSS WIDE, XA PRO WIDE) have approx.+12mm increase in forefoot volume vs standard fit
ORDER SIZE | FOOT LENGTH (INCH) | EUR | US - WOMEN | US - MEN |
3.5 UK | 8.5 | 36 | 5 W | 4 M |
4 UK | 8.7 | 36 2/3 | 5.5 W | 4.5 M |
4.5 UK | 8.9 | 37 1/3 | 6 W | 5 M |
5 UK | 9.1 | 38 | 6.5 W | 5.5 M |
5.5 UK | 9.3 | 38 2/3 | 7 W | 6 M |
6 UK | 9.4 | 39 1/3 | 7.5 W | 6.5 M |
6.5 UK | 9.6 | 40 | 8 W | 7 M |
7 UK | 9.8 | 40 2/3 | 8.5 W | 7.5 M |
7.5 UK | 10 | 41 1/3 | 9 W | 8 M |
8 UK | 10.2 | 42 | 9.5 W | 8.5 M |
8.5 UK | 10.4 | 42 2/3 | 10 W | 9 M |
9 UK | 10.6 | 43 1/3 | 10.5 W | 9.5 M |
9.5 UK | 10.8 | 44 | 11 W | 10 M |
10 UK | 11 | 44 2/3 | 11.5 W | 10.5 M |
10.5 UK | 11.2 | 45 1/3 | 12 W | 11 M |
11 UK | 11.4 | 46 | 12.5 W | 11.5 M |
11.5 UK | 11.6 | 46 2/3 | 13 W | 12 M |
12 UK | 11.8 | 47 1/3 | 13.5 W | 12.5 M |
12.5 UK | 12 | 48 | 14 W | 13 M |
13 UK | 12.2 | 48 2/3 | 14.5 W | 13.5 M |
13.5 UK | 12.4 | 49 1/3 | 15 W | 14 M |
14 UK | 12.6 | 50 | 15.5 W | 14.5 M |
14.5 UK | 12.8 | 50 2/3 | 16 W | 15 M |
Our wide fitting models (X-ULTRA WIDE, SPEEDCROSS WIDE, XA PRO WIDE) have approx.+12mm increase in forefoot volume vs standard fit
ORDER SIZE | FOOT LENGTH (CM) | EUR | US - WOMEN | US - MEN |
3.5 UK | 21.5 | 36 | 5 W | 4 M |
4 UK | 22 | 36 2/3 | 5.5 W | 4.5 M |
4.5 UK | 22.5 | 37 1/3 | 6 W | 5 M |
5 UK | 23 | 38 | 6.5 W | 5.5 M |
5.5 UK | 23.5 | 38 2/3 | 7 W | 6 M |
6 UK | 24 | 39 1/3 | 7.5 W | 6.5 M |
6.5 UK | 24.5 | 40 | 8 W | 7 M |
7 UK | 25 | 40 2/3 | 8.5 W | 7.5 M |
7.5 UK | 25.5 | 41 1/3 | 9 W | 8 M |
8 UK | 26 | 42 | 9.5 W | 8.5 M |
8.5 UK | 26.5 | 42 2/3 | 10 W | 9 M |
9 UK | 27 | 43 1/3 | 10.5 W | 9.5 M |
9.5 UK | 27.5 | 44 | 11 W | 10 M |
10 UK | 28 | 44 2/3 | 11.5 W | 10.5 M |
10.5 UK | 28.5 | 45 1/3 | 12 W | 11 M |
11 UK | 29 | 46 | 12.5 W | 11.5 M |
11.5 UK | 29.5 | 46 2/3 | 13 W | 12 M |
12 UK | 30 | 47 1/3 | 13.5 W | 12.5 M |
12.5 UK | 30.5 | 48 | 14 W | 13 M |
13 UK | 31 | 48 2/3 | 14.5 W | 13.5 M |
13.5 UK | 31.5 | 49 1/3 | 15 W | 14 M |
14 UK | 32 | 50 | 15.5 W | 14.5 M |
14.5 UK | 32.5 | 50 2/3 | 16 W | 15 M |
- Place a sheet of paper on the floor and against a wall
- Make sure you are wearing the same socks that you would normally wear with this type of shoe
- Wearing these socks, stand on the sheet of paper with your foot perpendicular to the wall and your heel against the wall.
- Then use a pen to draw a line just in front of your big toe. Repeat for both feet and take the longer distance to determine your size.
- Using a ruler, measure the distance between the wall and the line you drew to find your size.
Kid's Footwear
Calculate your own measurements, then select your product size
ORDER SIZE | FOOT LENGTH (INCHES) | EUR | US |
8.5K | 6.3 | 26 | 9K |
9.5K | 6.5 | 27 | 10K |
10K | 6.7 | 28 | 10.5K |
10.5K | 6.9 | 29 | 11.5K |
11.5K | 7.3 | 30 | 12K |
12.5K | 7.5 | 31 | 13K |
13.5K | 7.9 | 32 | 1 |
1 | 8.1 | 33 | 1.5 |
2 | 8.3 | 34 | 2 |
2.5 | 8.5 | 35 | 3 |
3.5 | 8.7 | 36 | 4 |
4 | 8.9 | 37 | 5 |
5 | 9.3 | 38 | 6 |
ORDER SIZE | FOOT LENGTH (CM) | EUR | US |
8.5K | 16 | 26 | 9K |
9.5K | 16.5 | 27 | 10K |
10K | 17 | 28 | 10.5K |
10.5K | 17.5 | 29 | 11.5K |
11.5K | 18.5 | 30 | 12K |
12.5K | 19 | 31 | 13K |
13.5K | 20 | 32 | 1 |
1 | 20.5 | 33 | 1.5 |
2 | 21 | 34 | 2 |
2.5 | 21.5 | 35 | 3 |
3.5 | 22 | 36 | 4 |
4 | 22.5 | 37 | 5 |
5 | 23.5 | 38 | 6 |
- Place a sheet of paper on the floor and against a wall
- Make sure you are wearing the same socks that you would normally wear with this type of shoe
- Wearing these socks, stand on the sheet of paper with your foot perpendicular to the wall and your heel against the wall.
- Then use a pen to draw a line just in front of your big toe. Repeat for both feet and take the longer distance to determine your size.
- Using a ruler, measure the distance between the wall and the line you drew to find your size.
BENEFITS
Cushioning
EVA cushioning protects your foot and ensures soft landings whether you’re hopping over rocks or paving stones.
Light & Durable Construction
The lightweight, streamlined construction features a mix of resistant TPU film and mesh designed to last.
Long-distance stability
The downhill chassis and lug geometry give you more stability, however far you go.
Essential info
FEATURES
EndoFit™
An internal fit sleeve designed to hug the foot in exactly the right places and provide a precise fit.
Agile Chassis™ System
ACS provides stability and dampening and works in concert with the EnergyCell midsole.
Abrasion-resistant TPU material
Durable material that effectively resists environmental factors to limit wear over time.
DETAILS
Materials & Maintenance
Textile
Textile
Rubber
Synthetic / Textile
BENEFITS
Cushioning
EVA cushioning protects your foot and ensures soft landings whether you’re hopping over rocks or paving stones.
Light & Durable Construction
The lightweight, streamlined construction features a mix of resistant TPU film and mesh designed to last.
Long-distance stability
The downhill chassis and lug geometry give you more stability, however far you go.
Essential info
FEATURES
EndoFit™
An internal fit sleeve designed to hug the foot in exactly the right places and provide a precise fit.
Agile Chassis™ System
ACS provides stability and dampening and works in concert with the EnergyCell midsole.
Abrasion-resistant TPU material
Durable material that effectively resists environmental factors to limit wear over time.
DETAILS
Materials & Maintenance
Textile
Textile
Rubber
Synthetic / Textile