"Flat Six Society" T-Shirt | "Engineering Chapter" Porsche Flat-Six Technical Engine Specifications Lifestyle Tee
- Unit price
- per
Size chart
All purchases are final sale. Exchanges/refunds will not be given for buyer error or remorse. Below, we show you how to measure yourself and the sizes based on apparel type. Pro tip! Measure one of your similar items at home and compare it with the measurements you see in this guide.
Product measurements may vary by up to 2" (5 cm).
Unisex T-shirts |
Length (in-cm) | Width (in-cm) |
|
Small |
28 - 71.1 | 18 - 45.7 |
|
Medium |
29 - 73.7 | 20 - 50.8 |
|
Large |
30 - 76.2 | 22 - 55.9 |
|
X Large |
31 - 78.7 | 24 - 61 |
|
2X Large |
32 - 81.3 | 26 - 66 |
|
3X Large |
33 - 83.8 | 28 - 71.1 |
Button-Up Shirts |
Width (in) | Length (in) | Sleeve (in) |
| 2XS | 20 ½ | 30 ⅛ | 10 ¼ |
| XS | 21 ¼ | 30 ½ | 10 ¼ |
| Small | 22 | 30 ⅞ | 10 ¼ |
| Medium | 22 ¾ | 31 ¼ | 10 ¼ |
| Large | 24 ⅜ | 32 ⅛ | 10 ⅜ |
| XL | 26 | 32 ⅞ | 10 ⅝ |
| 2XL | 27 ⅝ | 33 ¾ | 10 ¾ |
| 3XL | 29 ⅛ | 35 | 11 |
| 4XL | 30 ¾ | 35 ¾ | 11 ¼ |
| 5XL | 32 ¼ | 36 ⅝ | 11 ⅜ |
| 6XL | 33 ⅞ | 37 ⅜ | 11 ⅝ |
| Polo Shirts (Slim Fit) | Length (in) | Chest width (in) |
| XS | 27 ¾ | 19 |
| S | 28 ¼ | 19 ¾ |
| M | 28 ½ | 20 ½ |
| L | 29 | 21 ¼ |
| XL | 29 ¼ | 22 |
| 2XL | 29 ¾ | 22 ¾ |
| 3XL | 30 ¼ | 23 ½ |
Hoodies |
Length (in) | Width (in) |
| Small | 27 | 20 |
| Medium | 28 | 21 |
| Large | 29 | 23 |
| XL | 30 | 25 |
| 2XL | 31 | 26 1/2 |
| 3XL | 32 | 28 |
Raglan shirts |
Length (in) | Width (in) |
| XS | 26 | 16 ½ |
| Small | 28 | 18 |
| Medium | 29 | 20 |
| Large | 30 | 22 |
| XL | 31 | 24 |
| 2XL | 32 | 26 |
Women's T-Shirts |
SHIRT WIDTH | SHIRT LENGTH | US SIZES | EU SIZE | UK SIZE |
| Small | 18.5 | 25.25 | 6-8 | 36-38 | 10-12 |
| Medium | 20 | 26 | 10-12 | 40-42 | 14-16 |
| Large | 22 | 26.75 | 14-16 | 44-46 | 18-20 |
| XL | 24 | 27.5 | 18-20 | 48-50 | 22-24 |
| 2XL | 26 | 28.25 | 22-24 | 52-54 | 26-28 |
| 3XL | 28 | 29 | 26-28 | 56-58 | 30-32 |
"Flat Six Society" T-Shirt | "Engineering Chapter" Porsche Flat-Six Technical Engine Specifications Lifestyle Tee | Gift for Porsche Fans & Engineering Enthusiasts
Flat Six Society. Engineering Chapter. The flat-six isn't just an engine — it's an engineering case study. Displacement, bore and stroke, valve configuration, firing order, compression ratio, lubrication system, cooling architecture. Across six decades of refinement, every technical detail has been continuously developed by some of the most dedicated engineers in the automotive industry. Members of the Engineering Chapter know every spec on every variant — and respect what each detail represents.
Perfect for Porsche flat-six engineering enthusiasts, 911 generational completionists, technical specification appreciators, mechanical engineering history nerds, GT department disciples, Porsche Club of America members, Rennsport Reunion attendees, vintage Porsche restorers, and anyone who can rattle off flat-six engine specifications by generation. A perfect gift for the friend whose appreciation for the flat-six runs deep into the engineering details — and who reads service manuals for fun.
- 100% combed and ring-spun cotton (Heather colors contain polyester)
- Fabric weight: 4.2 oz/yd² (142 g/m²)
- Pre-shrunk fabric
- Side-seamed construction
- Shoulder-to-shoulder taping
- Blank product sourced from Guatemala, Nicaragua, Mexico, Honduras, or the US
Size guide
| LENGTH (inches) | WIDTH (inches) | CHEST (inches) | |
| S | 28 | 18 | 34-37 |
| M | 29 | 20 | 38-41 |
| L | 30 | 22 | 42-45 |
| XL | 31 | 24 | 46-49 |
| 2XL | 32 | 26 | 50-53 |
| 3XL | 33 | 28 | 54-57 |
| 4XL | 34 | 30 | 58-61 |
| LENGTH (cm) | WIDTH (cm) | CHEST (cm) | |
| S | 71.1 | 45.7 | 86.4-94 |
| M | 73.7 | 50.8 | 96.5-104.1 |
| L | 76.2 | 55.9 | 106.7-114.3 |
| XL | 78.7 | 61 | 116.8-124.5 |
| 2XL | 81.3 | 66 | 127-134.6 |
| 3XL | 83.8 | 71.1 | 137.2-144.8 |
| 4XL | 86.4 | 76.2 | 147.3-155 |
All sales are final unless the item is defective, damaged, or the wrong one was sent.
It is very important you order the right size - exchanges/refunds will not be given for buyer error or remorse. Read more here.
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