Boys Clarks Dinosaur Detailed School Shoes Rex Stride. Brand: Clarks. Fastening: Hook & Loop. The Clarks 626985E REX STRIDE K boys school shoes are fun and hard wearing. These Clarks school shoes are dinosaur-inspired with the claw marks on the side rubber spikes on the heel back and the cool dino footprint on the flexible sole. The boys Clarks school shoes have a black leather upper which is breathable and flexible whilst the rubber overlay on the toe keeps them hard wearing and tough. There are two hook and loop straps for a quick and easy fastening whilst the antimicrobial Agion lining helps to keep feet fresher for longer.