What are the rubber Birks called?

In addition to their lower price, the EVAs are comfy, and they’re much easier to maintain than their more-expensive leather counterparts. The EVAs are made of synthetic plastic—or ethylene vinyl acetate (the sandal’s name, EVA, is an initialism of this combination of materials).

Do rubber Birkenstocks mold your feet?

They are very comfortable EVA stands for “ethylene vinyl acetate,” – it’s a synthetic plastic that is lightweight and feels similar to foam (except they’re sturdy). They feature a molded foot, deep heel cup, and supportive arches, too – and they mold to your foot shape.

Why do podiatrists recommend Birkenstocks?

“They’re really good for if you have a flat foot or you have arch pain, because they have a supportive longitudinal arch.