Yeezy Boost 350 V2 Israfil The adidas Yeezy Boost 350 V2 ‘Israfil’ features a patchwork-like composition on the Primeknit upper, constructed from a two-tone blend of tan and grey yarns. The neutral hues are enlivened by a streak of yellow on the signature post-dyed monofilament side stripe. Responsive cushioning comes courtesy of the standard full-length Boost midsole, encased in a semi-translucent rubber sidewall. A grippy gum rubber outsole provides durable traction underfoot. Summary: The idea of leaving room to accommodate socks is completely unfounded when it comes to winter shoes. Don't be tempted to take the size up as too much movement of the shoe can cause sores. Air Feets have great durability of all shoes.