The Pulsion Kid is adapted to the needs of children who are new to the joys of tennis. Elastic laces and Velcro fastenings make it easy for children to put this shoe on, for on and off-court use. Support: The Propulse Jr is the ideal shoe for young competitors who want to develop their game. The Power Belt is like a "seat belt" that keeps the foot secure even through the most demanding shots.Comfort and support: Because we're always thinking about comfort, we've given the Propulse Jr an EVA midsole and the Kompressor system to protect the ankle from sudden impact throughout training and matches.Sole durability: We've worked with Michelin to create a sole made of a special kind of rubber for each court surface.Power Belt: The Powerbelt is a wide strap that wraps around the midfoot and offers both exceptional lateral support and an almost tailored fit all around the foot.Rubber forefoot protection: A firm protective rubber piece covering the inner forefoot down to the toes for unrivalled upper durability.Kompressor: TPR (Thermo Plastic Rubber) tube compression system positioned beneath the heel for exceptional shock absorption.Michelin Tennis: The Michelin rubber composition has proven its worth over the past 15 years and beyond, It offers a great combination of traction and durability to meet the extreme demands of tennis footwork.