I've been recycling all of my plastic containers and I just finished a container of Clif Shot Endurolyte, but there is no number on the container. The lid is a type 5 so I was able to recycle it. Anyhow, I thought I'd email Clif to see what the deal is on their containers since I'm sure they would like for them to be recycled. Their response was silence. They are green. At least that is their opinion. But probably not mine.