has anyone have these headphones or had them if so how bad is the noise leakage? I need an answer ASAP thanks guys :)

Hi i am looking for some stylish,lightweight comfy headphones   long story short. I'm off on a school trip to France and its a 10hr+ bus journey so with girls gossiping and giggling  it will get annoying im a bit cheap at the moment so £45-50 is max cost. like i said girls talking and...