The Asics S4 200km update. Boom! 

Totally agree with you, it is a great shoe. I think that the Superblast is even better, so thankfully that is widely available (or was, up to recently - as global stocks of that shoe is hard to come by at the moment).

I bought a pair when I was over for the Tokyo marathon at the start of the month (raced in my old Novablast 1s though - so comfy and quick!). Really enjoying the S4s but have another marathon coming up and have bought the metaspeed sky Paris - feeling like the S4s may be a bit harsh after a 23km training run. Have you tried any longer runs yet?

@@rowwdy09 No, I've not yet run over 11k in them. Really interested in your views, thanks for sharing. It is on my list of things to try.

Magic Speed 4 will be virtually identical to these I reckon.

@@Fozzee.1970 I think that you are onto something there with that thought.

They are over 20mm, but unless you're elite, no need to worry. Ok for masters too. I use them for training.

@@theinconsequentialrunner Thanks for the clarification. I guess, it depends on who is running the show (race) and how they enforce the rules. Tim Grose (on You Tube) in UK does track races and he is a masters runner and I think they do enforce there. I don't do track races here in the US but do my speed work at track and so these could work for me but I usually use Adidas Takumi Sen 8. It is an excellent shoe as well. A few days ago, someone broke mile record in TS10.

I've raced parkrun in it. Great for that, but would look to something else for a top race for me.

​@theinconsequentialrunner just did some sessions in it, and I agree with your point. For b races, I would use it, but definitely for pb or A races, i prefer other shoe. For me, it feels slower than the Magic speed 3in anything less than 10k. It but definitely can handle HM distance.