We only restock items if they are still part of the current seasons line. When we do we usually put up pre-orders so people can ensure they get the size they wish, these pre-orders stay up for 3 weeks while the order is processing. On popular items it's worth it as we're known for selling out straight away after release in the past. Approaching the end of the season it's possible that we will not restock an item if it hasn't sold well. It's helpful however to know if you want a specific item if it's sold out since it gives us a clear indication if it's of high demand or not.