Geox J Shaylax Boy Formal School Shoes in Black. Upper Material: Leather. Lining Material: Leather/Textile. Sole Material: Synthetic. Closure/Fastening: Touch Fasten. Features: Adjustable Strap, Breathable, Comfort. Shoe Width: Regular. Heel Height: Low (2.5-4.9cm). Shoe Style: School. These shoes are designed to ensure the correct development and wellbeing for young feet during every phase of growth.