Geox J Pavel A Boys Trainers / Shoes - Geox J Pavel A is a boys casual trainer with two adjustable Hook and Loop Closure strap fastenings. Trending trainer. This trainer is lightweight and has a soft padded ankle area. The sole unit is durable but also flexible, also being that its breathable. The upper is a combination of synthetic suede and mesh and the insole is soft leather. The rubber soles on this model are based upon an exclusive Geox patent: a breathable and waterproof membrane that allows for natural thermoregulation and creates an ideal microclimate inside of the shoe.