The Nike Platinum Elite Cushion XL Basketball Socks are designed to soften the impact when things heat up during intense competition. Mesh panels along with Dri-FIT fabric increase the ventilation and wick sweat to help keep your foot dry and comfortable for the whole game. Extra padding at the heel and forefoot are in the high-wear areas where you need it most. Left/right specific for a custom fit. XL is size 12 to 15. 62% polyester, 21% nylon, 15% cotton, 2% spandex.