This Waterproof Trainer style boot is a great Winter shoe for Boys who prefer training sty;ing but also want warm and dry feet. Designed in collaboration with the Institute of Biomechanics of Valencia (IBV), these shoes provide superior protection and all-day comfort while respecting the natural development of your child's feet.Waterproof Part of the Bioevolution range, designed for active toddlers and older children with a consolidating gait, offering stability and high resistance to intensive use. Natural Foot Development: Ergonomically designed and IBV-Endorsed to allow for the natural growth and movement of the foot. Flexible Sole with Grip: Soft Stabiliser: Includes a supportive structure that aids in controlling lateral movement, providing stability and balance without restricting natural development. BioLinning Interior: Lined with Biomecanics' innovative, sustainable microfibre lining. This lining offers a thermoregulating effect and favours evaporation for dry, healthy, and odour-free feet. Removable, Antibacterial Insole