It’s really sad that Protoparadigm disappeared in the middle of the night. They had a very good earth tone and gem series of filaments. One of the owners and original creators of the filament is continuing the colors at MadMakerFilament.com. MadMaker is advertising a quality 3D850 HTPLA in their filaments. I must caution you that I do not have any direct buying experience with this new company but the owner responded quickly and thoroughly to my email. Protoparadigm was also known as 5 dollar filament and they may be returning with yet another name.