Ultraboost 21 Solar Red / Core Black / Gold Metallic Running Shoes Store:Adidas Store They're made from organic canvas

They're made from organic canvas that's overlayed with soft suede and have a special lacing system that's designed to tie around your ankles for a neater look

The silhouette fuses vintage Jordan design elements with the minimalist aesthetic popularised by classic tennis shoes to capture the best of both worlds

which is reflected in the depth in suede and textures throughout the shoe

with lime and orange hits at the heel contrasting waves of red

Ultraboost 21 Solar Red / Core Black / Gold Metallic Running Shoes Store:Adidas Store They're made from organic canvasPrototype after prototype. Innovation after innovation. Testing after testing. Meet us in the hot pursuit of the pinnacle harmonization of weight, cushioning, and responsiveness. Ultraboost 21. Say hello to incredible energy return.