Unparallel TN Pro

Has anyone tried the Unparallel TN Pro shoes who can tell me what size to get compared to street shoe size? Do they stretch at all, as they appear to be unlined leather?

Mine were so awesome, but stretched out a full size, to the point I can't heel hook in them anymore. There is a full finger of dead space there now. I'll definitely get them again at some point and likely will go 2 sizes down from street shoe. 

Love my Skwamas, but the full length sole and Unparallel rubber is a step above in my opinion. 

I have used the TN Pro and Flagship for my gym shoes for a while now and they're both great. Very sensitive with a lot of precision in the toe still. I went street shoe size and didn't get as much stretch as the post above overall but I also suffered from the really baggy heel, especially over time. 

Most recently, after discussing this problem with some folks I switched to the Sirius Lace. A little stiffer than the TN Pro, but a much much better and lower volume heel. Something to consider if the heel in the TN feels a little sloppy. 

I have a size below my street shoe, 42.5 TN pro and normally wear a 44 street shoe. I haven't found that they stretch a huge amount, compared to the flagship or souped up for example. 

I've owned one pair of yellow TN Pro, I got them in April of 2021 and still use them as an outdoor shoe. Really love them, but will warn that the break in period was a little rough because they're very stiff, and not the most sensitive out of the box but break in very nicely over a few sessions. I am a U.S. Mens 8.5 on the Brannock device, and I got my TN pro's in a 8.0. I would not be able to downsize more than this. They stretched probably a quarter size, but did get significantly more comfortable once broken in. For reference, I am about a 38.5 or 39 in La Sportiva, and a 39.5 or 40 in Scarpa.