The Jura Slide is a refreshing leather sandal with a comfortable footbed. Slip-on construction Leather covered EVA footbed TPR Outsole. Scientifically Proven to Alleviate Heel Pain* *Based on a peer-reviewed clinical study partially funded by Vionic on people experiencing moderate, non-traumatic heel pain. Vionic contoured sandals were shown to be comparable in effectiveness to Vionic orthotic inserts. Support Technology:.