Thanks to a special membrane that is permeable to vapour but impermeable to water, rubber outsoles are able to breathe and leather outsoles remain waterproof. Geox women's comfortable back strap sandals with an amazing feel. The Bigliana sandals will be a major player in any women's wardrobe with an elegant upper in dark hues. These pointed-toe sandals have a back strap and mid-heel with a contemporary pared-back silhouette and will lift any formal look or business outfit with a chic touch.