645hp V10: American Circuit Legend T-Shirt (Unisex)

$29.99

645hp naturally aspirated V10 on a golden hour racing circuit. Viper Red, massive rear wing, 13 lap records worldwide. Heavyweight cotton American muscle shirt. Free US shipping over $99.

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645hp V10 shirt - black front view
645hp V10: American Circuit Legend T-Shirt (Unisex)
$29.99

Free US shipping on orders over $99

Free international shipping on orders over $149

  • Replaced if damaged or defective
  • Ships in 2-5 business days
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Adult Unisex T-Shirt Size Guide

How to measure

1. Width

Lay the shirt flat. Measure from one side seam to the other, just below the armhole.

2. Length

Measure from the top of the shoulder (at the collar seam) straight down to the bottom hem.

3. Sleeve length

Measure from the center back of the neck, across the shoulder seam to the end of the sleeve.

Note: Measurements may vary by ±1.5 in (3.8 cm) due to manufacturing tolerances. If you are between sizes, we recommend sizing up.

Imperial (inches)

Size S M L XL 2XL 3XL 4XL 5XL
Width 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0
Length 28.0 29.0 30.0 31.0 32.0 33.0 34.0 35.0
Sleeve length 15.1 16.5 18.0 19.5 21.0 22.4 23.7 25.0

Metric (centimeters)

Size S M L XL 2XL 3XL 4XL 5XL
Width 46.0 50.8 56.0 61.0 66.0 71.1 76.2 81.3
Length 71.1 73.7 76.2 79.0 81.3 84.0 86.4 89.0
Sleeve length 38.4 42.0 45.7 49.5 53.3 57.0 60.2 63.5

8.4 litres. Naturally aspirated. No excuses.

The VX on track is exactly what it looks like – a car built for one purpose and nothing else. Viper Red, massive rear wing, side exhausts breathing fire, golden hour shadows stretching across the pit straight. This 645hp V10 shirt captures the most uncompromising American performance machine ever built.

645 horsepower from a naturally aspirated 8.4L V10. No turbo, no supercharger – just displacement, aggression, and a chassis that demands respect from the first corner.

About the 645hp V10 Circuit Legend

The VX generation (2013-2017) was the definitive version of the American supercar platform – lighter, faster, and more track-focused than anything that came before it. The ACR package added a massive dual-element rear wing, Bilstein motorsport suspension, and Kumho Ecsta V720 tires developed specifically for the car. It broke lap records at 13 different circuits worldwide. Explore the full American Muscle collection or read more about the VX platform on Wikipedia.

Engineering & Build Quality

  • Universal Unisex Chassis – Classic unisex cut, comfortable fit for men and women.
  • Chassis-Grade Fabric – US-grown ring-spun cotton at 180 g/m2 (5.3 oz/yd2) for a structured, heavyweight feel that holds its shape. Most colors: 100% cotton. Sport Grey & Dark Heather: 90% cotton / 10% polyester.
  • Seamless Construction – Tubular knit construction along the sides for a cleaner silhouette and all-day comfort.
  • Structural Integrity – Double-needle stitched collar and shoulder-to-shoulder taping so the fit stays true wash after wash.
  • High-Definition Graphics – Hybrid printing process keeps the V10 illustration sharp and colorfast for the long haul.

Care Instructions (The Owner’s Manual)

  • Wash: Machine wash cold (Max 30C / 86F).
  • Dry: Tumble dry low. Do not wring.
  • Iron: Iron inside-out on low. Never iron over the graphic.
  • Bleach: Do not bleach. Do not dry clean.

Redline Gear: built by enthusiasts, for enthusiasts.


EU Product Safety Information (GPSR)

EU Representative: HONSON VENTURES LIMITED, gpsr@honsonventures.com, 3, Gnaftis House flat 102, Limassol, Mesa Geitonia, 4003, CY

Product: Gildan 5000. 2-year warranty in EU and Northern Ireland as per Directive 1999/44/EC.

Warnings: For adults. Made in Nicaragua.

Redline Gear is built by enthusiasts, for enthusiasts. Every design is a tribute to the machines and moments that define driving culture.

Additional information

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