£10 ono. I bought this for cycling and it just doesn't fit me. I've tried on the triple 8 helmets in other sizes, just turns out I don't have a "universal" head shape.
So yeah, yours for a tenner! Can bring to Wednesday practices and the odd friday.
http://www.triple8.com/shop/product/Triple-Eight-Brainsaver-Helmet-with-EPS-LinerI P xx