The Adidas Yeezy Boost 350 V2 Infants 'Onyx' Utilizes Black Primeknit Construction With Center Stitch Detailing And A Post-Dyed Monofilament Side Stripe. Elastic No-Tie Laces Combine With A Pull Tab At The Heel To Deliver Easy On And Off. The Lightweight Build Is Mounted On A Full-Length Boost Midsole, Featuring Semi-Translucent Thermoplastic Polyurethane Sidewalls For Enhanced Durability And Support.