Intentional design
Everything we do starts with why
Made with care
We believe in building better
A team with a goal
Real people making great products
Your journey starts with the foundation.
The Foundation Tee is the first step in your self-defining journey - a daily reminder to strengthen the body, steady the mind, and define your direction.
Soft, lightweight, and built for movement, reflection, and routine. It’s made for those building a balance between physical wellness and mental clarity.
Every rep, every page, every reflection, this is where your Definition begins.
• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping
• Blank product sourced from Nicaragua, Mexico, Honduras, or the US
Disclaimer: The fabric is slightly sheer and may appear see-through, especially in lighter colors or under certain lighting conditions.
Age restrictions: For adults
EU Warranty: 2 years
In compliance with the General Product Safety Regulation (GPSR), Printful, Inc. and The Definition Collective LLC ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at contact@the-def.com. You can also write to us at 11025 Westlake Dr, Charlotte, NC 28273, USA. or 2108 Champlain Street, Toms River, NJ, 08757, USA.
Size guide
| LENGTH (inches) | WIDTH (inches) | CHEST (inches) | |
| XS | 27 | 16 ½ | 31-34 |
| 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 |
| LENGTH (cm) | WIDTH (cm) | CHEST (cm) | |
| XS | 68.6 | 42 | 78.7-86.4 |
| 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 |