Lululemon speed shorts 2”

Lululemon speed shorts 2” (I think they’re called). I just purchased these preowned from eBay but they look brand new to me; I see no flaws. They’re just too small. I have the same shorts in another pattern and adore them, I wanted another pair. But I don’t have a lot of Lululemon & didn’t know where to find the size so I took a chance on these. Now I see that mine are a 4. Apparently I can’t do a 2 in Lululemon! Lol Would prefer to trade for a size 4 vs selling.