Our standard Ruck Plate Carrier is designed to hold either a 20lb or 30lb Rucker Plate only. You can fit the 10lb plate inside but there will be leftover space so you will need to buffer that with a small towel to make up for the difference.
Our 45lb and GR1 plates will not fit in the standard Ruck Plate Carrier and keep in mind the RPC is designed to hold just one plate at a time. However, 45lb plates are designed to fit in the Ruck Plate Carrier 45LB.
The Long Ruck Plate Carrier will fit ANY size plate that we make. While not designed for them, you can use our standard 10, 20, and 30lb plates with with the long Ruck Plate Carrier - we just recommend using a rolled towel to help buffer the space difference.