Adidas sta fluid 3 trainers junior boys the adidas sta fluid 3 trainers are lightweight and comfortable featuring a breathable mesh upper teamed with twin touch and close fastening straps a padded ankle collar padded tongue cushioned eco ortholite insole and thick midsole with grip sole underneath completed with adidas branding boys trainers twin touch and close fastening straps padded ankle collar padded tongue cushioned insole thick midsole grip sole mesh uppe