In our testing, Ultra TNT matches or outperforms 1oz/yd DCF in most ways. The biggest performance advantage of Ultra TNT is that the fabric is stabilized by UHMWPE fibers in three directions instead of just two. This means Ultra TNT is more dimensionally stable than DCF which decreases the amount of deformation of the fabric under load. This superior stability reduces the strain on the Mylar films increasing durability along with making the fabric extremely rigid when well pitched. The coloration of Ultra TNT is also more opaque than DCF, meaning more privacy inside.

The other benefit of Ultra TNT is cost. At roughly half the price of DCF, Ultra TNT is not only better performing in many ways but also leads to much more affordable tents.

https://www.tarptent.com/buyers-guide/