A decent retail park or open shopping mall, the Mc Arthur Glen is right opposite the tram station,…read moreso is very convenient to reach from Lille. In terms of scale, the Mc Arthur Glen is not that large, comprised of one main street, with one or two other alleys spurring off each side. However, to be fair, it does have a good selection of stores, from your global brand names such as Nike, Reebok to some other accessory or clothing chains.
To find it listed under discount centers may be a slight misnomer, personally, I did not find any true bargains to be had here, so either they finished discounting before I arrived, or prices are not that discounted in general.
Either way, worth a visit if you happen to be nearby, but given the prices, not a place to plan a trip around unless you are certain they have new promotions going on.