The Nike Sportswear Flyknit Chukka FSB has been engineered for the elements. Utilising Nike's next generation innovation and construction, the Chukka is constructed of a thick Flyknit loom, interlocked with a wool-blend for extra comfort. Coated in Defender Repellent System's shield, the water-repellent upper also features TPU toe and heel panels with an iridescent, reflective effect. The rugged Phylon midsole sports embossed mini-Swoosh detailing with a rugged outsole tread with flex grooves and winterized carbon rubber lugs for all-terrain domination. The Chukka is complete with flat, threaded laces and tongue branding.