Nike Men's 2018 Zoom Fly SP 'Dark Citron' Size 13.Built for speed, the Zoom Fly SP ‘Dark Citron’ is also designed to be durable enough for everyday training. Mounted on the responsive Lunarlon midsole is a translucent, stretch-woven upper, accented with dark yellow detailing throughout. Within the midsole, a full-length carbon-infused nylon plate delivers an extra bit of spring during each stride. A digital clock graphic on the heel references Breaking2, the project undertaken by Nike to break the two-hour marathon barrier.IN GREAT CONDITION FROM A SMOKE-FREE AND PET FREE ENVIRONMENT THANKS FOR SHOPPING PLEASE CHECK OUT MY CLOSET.B23. Q