Is the New Balance M520409 good for running?

It works for light jogging and run-walk routines. The Fresh Foam midsole cushions landings, but at 9.2 oz and with a 10 mm drop it is not built for fast or long training.

Does it fit true to size?

New Balance running shoes generally run true to size, and this model has a standard lace-up fit. Try your usual running-shoe size, or a half size up if you wear thick socks.

Can I put orthotics in it?

Yes. The foam insole is removable, so a custom orthotic or a thinner aftermarket insole can go in its place.

Is it a stability or neutral shoe?

It is neutral, with no medial posting or guide rail. Runners who overpronate heavily should look at a stability model instead.

What is the heel-to-toe drop?

10 mm, which is on the higher side. It suits heel strikers and walkers; forefoot strikers may prefer a lower-drop shoe.

When is the best time to buy it?

New colorways usually get discounted when the next season's version arrives, and older colors drop around major sale periods. The current listed new price is $79 at GOAT as of November 7, 2026.