Rare slip on Cortex style Nike shoes. Unable to find much info on these as the serial numbers are different on each shoe Right marked: 820507 T Y Left marked 820609 T Y. Condition is fairly rough but still wearable, more of collector piece. Most interior foam is deteriorated, staining throughout, would probably clean up a little better. The item "Rare Nike Slip On 820608 T Y Size 11 820507 T Y Swoosh Cortez 1980s" is in sale since Saturday, July 27, 2019.This item is in the category "Clothing, Shoes & Accessories\Vintage\Men's Vintage Shoes". The seller is "usbpdx" and is located in Portland, Oregon. This item can be shipped to United States.