Any suggestions? I don't want ones which end up coming down over my bum & thighs as they just ride up and end up in a tyre around my waist or, if they stay down, are straining over my thighs & bum. I've spent the winter avoiding the issue by wearing massive jumpers instead but feel like such a frumpy lump in them that I need a change, especially as the weather isn't showing any signs of warming up.