item# 338996 Etnies Cirrus shoes. The Cirrus is an incredibly lightweight slip-on made entirely out of mesh, foam and minimal rubber. With an STI Evolution Foam outsole, you will experience cloud-like comfort in every step with rubber pods on the tread for traction. A breathable mesh upper in combination with a lycra spandex interior gives the Cirrus a snug, sock-like fit. Imported.