Sei is our highest thread count fabric at 600 TC. We are not myopically focused on thread count at MATTEO. Thread count is one among many measurements of quality in the world of bed linens. The most simple definition of thread count is to take a pair of scissors and cut out a square inch of fabrict and count each individual yarn (or thread). This is the thread count and, as such, thread count is simply a definition of the DENSITY of the weave. It does not take into consideration the softness of the raw cotton used or the size and smoothness of the yarn, nor does it measure the balance of the weave. Focusing only only thread count is similar to deciding which beer to drink by only measuring its alcohol content.
We have not yet gone above 600 thread count at MATTEO because higher counts typically produce a stiff and dense fabric that does not move or breathe. SEI is special because it uses the very same 120/2 Ne yarn in both warp and weft. All sateens (or satin) fabrics have a face which is softer and a backside which is rougher. This is what creates the "silky" feel that customers love so much. And our customers love SEI because it is one of the purest, softest, and silliest fabrics on the market.