Description
- Advanced seamless thermo-welded construction consists of ultra-thin PU film and 3D mesh to provide supremely lightweight performance and excellent comfort and fit.
- Dual, asymmetric closure system incorporates adjustable strap, and an aramidic, speed lacing system in the instep with Alpinestars’ exclusive wire closure system that offers optimal support, precise fit, and a secure closure.
- New super-light tongue construction combining micro suede and 3D mesh, provides excellent breathability and superior comfort.
- Collar padding constructed from PU foam for comfort and weight savings
- Lightweight, one-piece heel and insole construction for enhanced heel lockdown and comfort while driving.
- Certification/Homologation: FIA 8877-2022
- The TECH-1 KX V3 Shoe has an advanced, seamless thermo-welded construction consisting of ultra-thin PU film and textile to provide supremely lightweight performance and excellent comfort and fit.
- Laser cut air-intakes and perforations on toe and both sides for added breathability.
- First shoes homologated to new FIA karting standard.
- Bringing Formula 1-derived features, along with specific innovations for the kart track, the new Tech-1 KX V3 Shoe is now lighter and more breathable with a revised asymmetric lacing system to conform more closely to the foot. The use of thin PU film adds durability whilst reducing seam construction and pressure points. Laser cut-outs and perforations in the film, combined with 3D mesh, offer maximum breathability.
- External heel, ankle and internal toe reinforcements for abrasion resistance and protection.
- Color: Black/White/Red, Red/Black, Black/Silver/Orange Fluo, Black/Yellow Fluo, White/Green/Red, Black/White/Yellow Fluo
- Homologation: FIA 8877-2022
- Sizes: 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 12 | 13 (US men's)
- Brand: Alpinestars
- Model: Tech-1 KX V3
- Type: Karting Shoe
- FIA Rating: FIA 8877-2022
- Upper: Thermo-welded PU film and 3D mesh
- Sole: Ultra-thin F1-derived rubber outsole
- Closure: Strap plus aramidic speed lacing with wire closure
- Sizing: US men's
- Primary Use: Karting
| US & Canada | UK | Europe | Foot Length Inches | Foot Length Centimeters |
|---|---|---|---|---|
| 6 | 5.5 | 39 | 9.3″ | 23.5 |
| 6.5 | 6 | 39 | 9.5″ | 24.1 |
| 7 | 6.5 | 40 | 9.6″ | 24.4 |
| 7.5 | 7 | 40–41 | 9.8″ | 24.8 |
| 8 | 7.5 | 41 | 9.9″ | 25.4 |
| 8.5 | 8 | 41–42 | 10.1″ | 25.7 |
| 9 | 8.5 | 42 | 10.3″ | 26 |
| 9.5 | 9 | 42–43 | 10.4″ | 26.7 |
| 10 | 9.5 | 43 | 10.6″ | 27 |
| 10.5 | 10 | 43–44 | 10.8″ | 27.3 |
| 11 | 10.5 | 44 | 10.9″ | 27.9 |
| 11.5 | 11 | 44–45 | 11.1″ | 28.3 |
| 12 | 11.5 | 45 | 11.3″ | 28.6 |
| 13 | 12.5 | 46 | 11.6″ | 29.4 |
| 14 | 13.5 | 47 | 11.9″ | 30.2 |
| 15 | 14.5 | 48 | 12.2″ | 31 |
| 16 | 15.5 | 49 | 12.5″ | 31.8 |
Measure foot length heel to longest toe, standing, in centimeters for best accuracy. Conversions are a guide only — fit can vary between brands and between models from the same brand.
- Sizing: Alpinestars shoes are sold in US men’s sizes. Use the chart above to convert to UK or European sizes.
- Racing shoes fit slightly narrower than athletic shoes. If you are between sizes and like a snug fit for pedal feel, choose the smaller size; if you have a wide foot, choose the larger size.
- Unsure of your size? Call UPR Racing Supply for expert sizing help.
Any questions?
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