For young active users who are new to wheelchairs, proper positioning for propulsion is critical. Solid backrests, like the JAY� Zip Back, provide a key propulsion-positioning component. Designed specifically with children in mind, the JAY Zip solid backrest is optimized for pediatric weight, sizing, and contouring. And, it features a host of fun options. For kids on-the-go, the JAY Zip Back gets them where they are going with zip.