Pop into the Intersport in the corner between the High St and the street that goes down to the Midi station, opposite the Millet shop, and they have Sportiva Cobras (the 'other' orange slipper without the velcro strap) at just over 70 Eur. One of my all time favourite shoes, even though i'm normally a Scarpa-foot-type-guy.
Just be careful with the sizing if you get a pair, they stretch loads, so normally you'd get the smallest pair you can stuff your feet in and go through a week's pain before they become second skin.