Designed for active youngsters

these thermal insoles utilize NASA-developed Outlast technology

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Easy to put on : Elastic in the upper makes it easy to slip into the shoe

Filii Viper Velcro "Medium" Size:21 Designed for active youngstersDescription These children's shoes are a practical choice for outdoor and everyday activities, suitable for EU sizes 22 35. They combine technical performance with a minimalist style. Thin and Durable Sole: A 3 5 mm thick rubber sole provides a balance between flexibility and durability. Its minimal tread pattern ensures grip while maintaining a barefoot feel. Single Velcro Strap: A single Velcro strap ensures quick adjustment and a secure fit that