Upper material: synthetic Inner material: synthetic Sole: rubber Closure: pull on Heel shape: flat. Available sizes: 4,5. Roxy Flip flops / Sandals (Shoes) VIVA JELLY Available in women's sizes. by Roxy. At the sea or in town, flip flops are a vital accessory for relaxation! The Viva Jelly comes in a great gold colour and a style of their own. The synthetic toe post and upper with a rubber sole guarantee comfort all day long. Created by Roxy.