Knit upper Elastic no-tie laces Boost midsole Rubber outsole The Adidas Yeezy Boost 350 V2 Cmpct Kids 'Slate Onyx' Employs A Black And Grey Knit Upper Composed Of 50% Recycled Content. The Sock-Like Build Is Secured With No-Tie Bungee Laces And A Stretchy Collar. Inside The Shoe, Yeezy Branding Decorates The Sockliner. Anchoring The Sneaker Is A Full-Length Boost Midsole, Wrapped In A Ribbed Thermoplastic Polyurethane Cage For Enhanced Stability. A Rubber Outsole, Marked With A Debossed Adidas Logo Beneath The Toe, Provides Durable Traction.