When to retire boost shoes?

Lucky for you I have run in these shoes. The Zante goes after the fresh foam begins to crinkle in certain points. The Boost goes when your calves start to ring, at this point replace them straight away. Boost shoes are good for 3 weeks then they ease off, then at some stage they have a second wind, but be careful because this second wind stop suddenly then you ankles hurt. 800k so in the next couple of weeks you might notice a change.

Thanks, that's the information I was looking for.

I've gone more than 2500k in my Supernova Glides (80 kg runner) whereas my Kinvaras wore out after 700k. So I got twice as much out of Kinvaras as you, you might be able to get well above 1000k in your Supernova Glides. The boost material really does hold its bounciness much much longer. I've experienced that second wind too: When they feel a bit like they're giving out, let them stand for a week and run in other shoes (if you can), go back to the Glides and they almost feel like new.

(By the way, the boost material still wasn't done after 2500k, but the rubber outsole had no grip left, so I had to abandon the shoes.)

I've never noticed any loss of cushioning with Boost. I replace them when the outsole becomes so smooth that I start slipping around. Probably around 2500km.

I've got about 1100k on my Glide 8's. The Boost foam still feels bouncy, outsole is not completely gone, no holes in the upper.

Still, I'm thinking of retiring them because I feel shin splints after running in them. Maybe I'll give them a few weeks off first.

From my trial & error (really my mistakes) if the boost feels like it is going, it probably has already gone. If you like the Glide 8s get a new pair of them (or something else) and start breaking them in ASAP. Avoiding injuries is the best way to improve.

Subway Surfers Addiction wrote:

The Boost goes when your calves start to ring, at this point replace them straight away.

Calves ringing would be related directly to your biomechanics and wear pattern. It can't be a universal truth, just like how much mileage you can get out of a shoe depends on the person.

I guess it's personal, but I usually replace them when my shins start hurting.

Usually the upper gives up first.... (at least in my two pairs of Bostons)

True, guess I should retire them. I've broken in a pair of Tempo 9s already.

Boost deteriorates a lot slower than EVA. However, the Glide contains a lot of EVA as well as boost. I'd say they're more durable than an average shoe, but still, retire them when you feel they're out of life.