Nike | Shoes | Mens Nike Adapt New Unboxed | Poshmark。Men’s size 9.5 unboxed unworn BB Adapts. Have receipt to prove authenticity. The Adapt BB ‘Black’ brings Nike’s auto-lacing technology to the hardwood. The technology, dubbed FitAdapt, uses a small motor in the midsole to adjust the lacing, pressure and fit of the shoe, enabling the Flyknit upper to wrap around the contours of the foot. The sleek shoe sits on a Cushlon midsole, which is embedded with functional lights. The latter can be changed, along with preset fits and more, through the Nike Adapt app.