Nike | Shoes | Nike Air Max Ff 72 Sail Sling Back 209 | Poshmark。Worn just a few times, look brand new Resells for over $300 Facts No stranger to innovation, Nike designed the Air Max FF 720 \'Sail\' hybrid sandal/shoe with unconventional women in mind. Taking subtle cues from the classic Air Force one silhouette, the elevated AMFF 720 is dressed in white leather with a hit of red at the lace tips. Offering cut-outs at the midfoot and heel, feet stay snug with the closed-toe design and a straightforward drawcord system. A white strobel fuses the upper to the massive 720 Air unit and chunky outsole below.