Checkmate is a savings app with over one million users that have saved $$$ on brands like StockX.
The Checkmate extension automatically applies StockX discount codes, StockX coupons and more to give you discounts on products like Nike Air Force 1 Low '07 LX Gorge Green Croc (Women's).
Checkmate users have also been loving these products from StockX.
Users have been saving products like this to their collections.