Poor Belle, she's really suffering with the flies this year, keeps coming in with some whoppers, despite loads of fly cream and spray, so, my friend has let me use one of her fly sheets for now but I need to buy her one, problem I've got is sizing, the one she's wearing now is a 'Gallop' one and while it fits in the length it's tighter than I would like round her chest, so can anyone recommend one for a rather broad Haflinger please?