DD(7) has to wear summer dresses after Easter but is worried about showing her underwear (playground has a climbing frame and a rope-swing where they all seem to like hanging upside down). I don't really want to put her in tights because they will be uncomfortable on hot days / when running around. She normally wears trousers in winter but summer uniform shorts are for boys only apparently (at this point I don't want to make her wear them anyway just to make a point!). Is there anything she can wear under her dress which will cover underwear but won't show beneath the hemline of her dress?
I was thinking cycling shorts but searched online and they all look a bit too long in the leg...
Grateful for any recommendations!! 