Really nice case for the Mk4. I can't say it's the absolute highest grade leather you'll ever see, but it's price-appropriate. The case fits the Mk4 well and the belt loop on the back is very convenient for us Grillmasters. Let's face it, once you've taken the plunge and spent 6x what your friends paid for a thermometer, it only makes sense to take care of it and keep it protected, and this case does the job very nicely. Definitely worth the small incremental cost, in my opinion.