I got them from here: https://www.amazon.com/New-Balance-990v5-Sneaker-Castlerock/dp/B0797LTWLT/ref=sr_1_1?crid=3E9Q0QFBXKE23&keywords=990v5&qid=1642920618&sprefix=990%2Bv5%2Caps%2C77&sr=8-1&th=1&psc=1

Choose your size and make sure it is sold by Amazon.com.

Look for the "New & Used" option by Amazon.com.

The item may be say "Used -Good" or "Very Good" but I swear that Amazon only notices the condition of the box and not the shoes themselves.

These discounted sizes tend to come up from time to time, and only on the Grey model really.