I spent a number of years using a standard mat run of the mill mat,partly because I was living in a country where the choices were limited and partly because I had never experienced the comfort of practicing on a better quality mat.
Since then I have tested a few mats with some of my main criteria being firstly that it has been sustainably produced and that it will not add to the growing waste problem when it comes time to retire it, secondly comfort and grippy’ness and of coarse value for money is a factor.
In my opinion there are a few items that are truly worth the investment good shoes, a good jacket, a good mattress and a good mat.
If you are still having trouble deciding check out this review site https://www.reviews.com/best-yoga-mat/
My favourite the Manduka pro lite gets a mention.
Have a wonderful practice!
Check out my class schedule to join me for some enlivening yoga vibes in London