Joma indoor shoes with a flexible leather upper with VTS technology and a thermoformed EVA insole Joma Mundial Royal Indoor indoor shoes are perfect for any indoor sport. The shoes have a durable sole that extends the life of the model. On the sole you will find an ergonomically placed flex system that offers a better transition from heel to toe with every step. The upper leather material is very durable and flexible. Its thickness varies depending on the segment and its load. The VTS ventilation system ensures excellent breathability, so your feet stay dry and comfortable. Thermoformed EVA insole cushions foot shocks when walking and running. Material: EVA, textile, rubber, phylon, leather