Rubber sole Lightweight and durable, the layered upper is made from at least 20% recycled materials by weight: the iconic chassis is crafted from some recycled plastic while nearly every part includes a percentage of reclaimed materials. Originally designed for performance running, Nike Air provides lightweight cushioning that lasts. Bringing nature to the city, the prominent arch draws inspiration from a whale's tail and adds structure while the classic fingers on the side nod to palm trees and ocean waves. Rubber outsole for added traction and durability. Lace up closure for a secure fit Rebellious '90s style gets remastered. Rugged details, including a reinforced toe and a durable plastic cage, ramp up your attitude with outdoor-inspired vibes. And for added stability, it updates your Tuned Air experience with our innovative Crater Foam midsole.