The Nike Sock Dart SE Men's Shoe takes a minimalist approach to an ultra-comfortable style. Its engineered knit upper stretches to deliver a sock-like fit, while its adjustable midfoot strap provides a locked-down feel. Textile upper is flexible and breathable Adjustable midfoot strap for a personalized fit Phylon midsole for lightweight cushioning Rubber outsole with BRS 1000 in heel for traction and durability Outsole flex grooves for natural movement