MURIS Petra – shoes that grew from the earth and are ready to explore the world with your kids. Petra is barefoot footwear that combines sustainability with maximum comfort. Made from 80% plant-based materials – the upper from grape waste, the lining from corn – it’s lightweight, breathable, and gentle on both nature and children's feet. Petra is light, flexible, and ready for every step – from the playground to forest trails. Thanks to the wide toe box and slightly higher cut, children's toes have enough space and protection. The reinforced heel and toe can handle even the wildest adventures, while the thin zero-drop rubber sole supports natural movement and ground feel. No heel counter – for complete freedom of motion. Features flexible sole timeless design closure: Velcro straps season: spring, summer, autumn zero drop (heel and toe level) generous toe space 80% plant-based materials lightweight Parameters Foot width Regular, Regular wide, Wide Color Grey, Beige, White, Yellow, Mustard Ankle shape Regular Heel counter Lightly reinforced Use City Season Spring, Summer, Autumn Category Sneakers Shoe height Low-cut Material Recyklované Material Traditional sneakers made from unconventional materials. uppers: material made from grape waste lining: corn-based material insole: removable and antibacterial sole: natural rubber How to care for the shoes always remove coarse dirt first with a brush wipe the shoes with a damp cloth and let them dry do not wash the shoes or dry them near direct heat sources to increase durability, treat the shoes regularly with an impregnation spray with proper care, your barefoot shoes will last a long time How to choose the right size Measure your child's feet and add an extra space of 9–12 mm. Muris Petra Size Chart EU Size Internal Length (mm) Internal Width (mm) 20 125 59 21 131 60 22 138 61 23 145 62 24 153 64 25 158 67 26 167 68 27 174 69