Finally picked up a couple of element collection on Amazon. They seem to be phasing out, and the only difference with the new ramblers I could see is the magslide lids.

Copper 10oz - https://www.amazon.com/gp/product/B08D3WDMJ8/

Graphite 10oz - https://www.amazon.com/gp/product/B08D3WFZRH/

Graphite 14oz - https://www.amazon.com/gp/product/B086T3BQFG/