Is the adidas Ubersonic good for hardcourt and clay?

Yes. The rubber outsole is listed for both hardcourt and clay. Expect faster tread wear on clay than a clay-specific shoe.

How does the Ubersonic compare with heavier stability tennis shoes?

It is lighter and faster but gives up some durability and lateral support. Choose it if movement matters more than maximum protection.

What sizes does it come in?

Listed US sizes run from 6.5 to 14, in medium width. The upper is mesh, textile and synthetic with a lace-up closure.

Is $24.95 a good price for the Ubersonic?

At $24.95 at eBay as of November 7, 2026, it is far below typical new pricing for this line. That makes it a strong deal if the size and color you want are in stock.

Who is this shoe for?

It suits fast, movement-first tennis players and juniors or adults who want a light match shoe. Players needing maximum stability should look at support-first models.