I have a like new First Spear Slick Ultra light weight plate carrier. It holds shooter cut plates sized med. It held my 10x12 SAPI plates easily. Never been used, was bought, plates inserted and then lived the past year in my gear locker. These typically have a 3-6 month wait.
$100 Firm in Kennesaw
https://www.first-spear.com/the-slick-ultra-lightweight-plate-carrier
$100 Firm in Kennesaw
https://www.first-spear.com/the-slick-ultra-lightweight-plate-carrier