VIBAe Linen Zuma Oak Brown/Caramel, the slip-on with a collapsible heel, is made from elegant Vintage Linen and a Natural Rubber Sole lined with an antimicrobial and ergonomic Carbon Step™ footbed that will give you that OOHHH AAHHHH comfort feeling you’ve been waiting for.These are the ultimate comfy, wear everywhere shoes that are proudly handmade in a family-run factory in Portugal.These are the ultimate comfy, wear everywhere shoes that are proudly handmade in a family-run factory in Portugal.