Geox Jocker Sandal (Toddler/Little Kid/Big Kid) 100% Textile Imported Rubber sole Geox breathes sole technology combines breathability with a waterproof membraine Perforated sole allows air to flow into the shoe with each step while the waterproof membrane allows persperation to flow out of the shoe but doesn't allow water to seep in from underfoot. Midsole lights up with every step New soft leather lining promotes flexibility underfoot