Discounted race suits, training kit and team apparel. Suits are the item worth watching here: a GS suit is a significant purchase at full price, and race suit design changes slowly, so a discounted suit is still a fast suit.
What you cannot do is order a size: stock is whatever is left. If your athlete is between sizes, buy the one that fits now rather than the one they will grow into, because a loose suit costs time on course and may not pass inspection.
One thing to check before buying: whether you need a certified suit. FIS certification applies at FIS level and above; U14 and U16 racing at club, state and regional level does not require it.