This kind of shoe inserts is made of material for durable and long-term use. Made of EVA material, they are ventilated, sweat-absorbent and non-slip. Suitable for children to use for all the shoes. Ultra-light design,Ultra-soft cushioning,Reduce the damage to the foot due to vibration,Fits in virtually any shoe. Features - Color: Blue and Grey. - Material: EVA. - Size S (14-16.5): 17.5 x 6.8 x 2cm. - Size M (17-19.5): 20.5 x 7.3 x 2cm. - Size L (20-22): 22.5 x 8 x 2cm. - Size XL (20-24): 25 x 8.3 x 2cm. - Absorb perspiration to keep feet comfortable, fresh and dry. - Suitable for almost any casual shoe or boot. - Fit for all children. - Ultra-light design,Ultra-soft cushioning,Reduce the damage to the foot due to vibration,Fits in virtually any shoe.