Nike Sock Dart SE Premium Men's, Black, Size 4.5, 17124218. Modern and minimal: The Nike Sock Dart SE Premium Men's Shoe takes a minimalist approach with a stretchy, lightweight mesh upper designed for a comfortable feel and a streamlined look., Benefits: Stable, sock-like mesh upper is flexible and breathable, Adjustable midfoot strap for a personalised fit, Lightweight foam midsole offers cushioned comfort, Rubber outsole with grooves for durability and flexibility.