//private TrendLine trendLine;
public Size(Sell item, NikeSneaker sneaker)
{
this.size = item.shoeSize;
this.currency = item.localCurrency;
this.lastSoldItems.Add(item);
this.sneaker = sneaker;
}
public SizesList(NikeSneaker sneaker)
{
this.sneaker = sneaker;
}