Just like its predecessor, this adidas Crazy Explosive features an extended sock like collar. As the name may suggest, they are constructed with Primeknit across the uppers while the Three Stripes branding lands by the heel while adidas Basketball branding is applied to the heel. Finishing the model is a Boost midsole.adidas Primeknit upper wraps the foot in adaptive support and ultralight comfort; Forged TPU yarn construction adds durability and lightweight stability where you need it most