Atlassian Williams Racing F1 X Reflo Carlos Sainz T-Shirt - Burgundy
CMC Motorsports Master Size Guide
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How to measure
- Chest / Bust: around the fullest part, tape horizontal and snug (not tight), about 1″ below the underarms.
- Waist: around the narrowest part of your natural waistline, roughly at the belly button.
- Hip: around the fullest part of your seat, feet together.
- Flat width (garment charts): lay a shirt you own flat and measure seam-to-seam across the chest — double it for the circumference.
- Use a soft fabric tape. Measure over the underwear you'd normally wear with the garment.
Fitting advice
Between two sizes? Order the smaller for a tighter, athletic fit or the larger for a relaxed fit.
If your chest and waist point to different sizes, go with your chest measurement for tops.
Watch the fit note at the top — some European race brands (Castore, Macron, Kappa, Porsche) run slim, so many US shoppers size up.
Still unsure? Email sales@cmcmotorsports.com and we'll help you dial it in.
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Official Reflo x Atlassian Williams F1 Team Driver Collection
EU SIZING
USA ORDER 1 SIZE UP
Official Reflo x Atlassian Williams F1 Team Driver Collection featuring Carlos Sainz. Premium burgundy tee celebrating the iconic partnership between Williams Racing and Atlassian. **Sizing Note:** EU sizing — USA customers should order one size up for the perfect fit. Authentic team merchandise for F1 enthusiasts and racing fans.
Built for fans who move with the same focus and intent as Carlos Sainz, this Driver Short Sleeve T-Shirt delivers everyday comfort with race-ready attitude. Designed with a clean, athletic silhouette, it’s a versatile staple that transitions effortlessly from trackside moments to daily wear.
Constructed with set-in sleeves for a structured fit and finished with twin-needle topstitching at the cuffs and hem for added durability, this tee is made to hold its shape wear after wear. A 1x1 ribbed neckline ensures a secure yet comfortable feel, while the self-fabric back neck tape enhances comfort and reinforces the collar for long-lasting performance.
Sharp, understated, and engineered with attention to detail, the Carlos Sainz Driver Short Sleeve T-Shirt is a refined essential for fans who represent their driver with confidence.

Atlassian Williams Racing F1 X Reflo Carlos Sainz T-Shirt - Burgundy
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