recyclable hiking boots?

The "Fitzsimmons" from Native, a brand I hadn't heard of before until a quick peruse of nylon this morning so naturally this caught my eye:
"100% recyclable hiking boots. Oh, and they're foam -
made from a funky foam-injected material that creates 0% waste and no carbon emissions".
Kinda funky but I can't find out anything about how they're recyclable, what this mysterious foam is or anything about the rest of the products on the native website..come on guys!