Etnies Stratus Shoes. The Stratus is an incredibly lightweight off-the-board shoe 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 Stratus a snug, sock-like fit. Etnies logo on tongue, side heel, and back of heel. Foam Lite 1 insole. Breathable knit mesh upper. Hot melt detailing on the heel panel. Fully lined lycra spandex interior. Imported.