This is a play on the CAD industry's mantra about 3D. They want everyone to move from 2D to 3D - so long as its with their software.
Product Information

Not too tight, not too loose.
Fabric Thickness:
Look cool without breaking the bank. Our durable, high-quality, pre-shrunk 100% cotton t-shirt is what to wear when you want to go comfortably casual. Preshrunk, durable and guaranteed.
- 5.6 oz. 100% cotton
- Standard fit