Lightweight and comfortable insole, size XS. - Model Name: FUSION FLEXI - Size: XS (22.0-23.0 cm) - Model Name: FUSION FLEXI Lite Thank you for viewing. FUSION-FLEXI LITE Two pieces, one for each foot. New and unused. An all-around insole that is gentle on the feet. It is recommended not only for use in various sports, but also for everyday use such as walking, as it is easy to walk and reduces fatigue.