adidas ultraboost 21 grethr grethr grefou sustained grey A classic low profile silhouette

A classic low profile silhouette with our signature branding

• The soft nylon yarn is woven in a unique construction that more efficiently dissipates heat from the body • Open back

Two buttons up to

Primigi's Phl13729 is a casual and sporty style for boys

drawstring waistband

adidas ultraboost 21 grethr grethr grefou sustained grey A classic low profile silhouetteThe feel good running shoe in its 21st generation. Ultraboost 21 offers optimal cushioning alongside a socklike fit for a comfortable ride for both everyday and high performance use. Boost technology builds a response in energy to keep you going while maintaining the most modern style available. continental outsole for good grip and reliability on varied terrain.