Beachwear child black ipanema lining: flexpand rubber insole: flexpand rubber reference size: 31 2 fit: regular ipanema girls' black flip-flop sandals with metallic heart made entirely of flexpand, a 100% vegan recyclable material. Versatile and designed for the sea, these shoes ensure grit and freshness even on the hottest days. Finally, they are finished with a thick flexible sole that guarantees softness and resistance for optimal comfort.