up down NATSU X-FUNCTION junior (shorts) For young bike fans, ZIENER offers the functional bike shorts NATSU X-FUNCTION. The 4-way stretch material and the elastic insert on the back ensure maximum freedom of movement. The shorts are equipped with two front pockets and a wide adjustable waistband for optimal wearing comfort. The zippered pocket on the leg accommodates important items and collected treasures. The shorts can be perfectly combined with our jerseys. The inner trousers with X-FUNCTION pad creates a seamless and smooth biking experience with high freedom of movement on any route. 55.99 €* * MSRP excl. Shipping costs.