Red Bull Racing Sparco Safety Shoes Gymkhana S3 SRC certified, Bluemarine-Red, size 42. Sparco | Red Bull Racing Collection safety shoes S3 certified and ESD. Made from high-quality waterproof nubuck and suede leather with a special Red Bull Racing print. EVA sole and rubber outsole "HRO" with TPU reinforcement at the heel. Composite toe protection, resistant up to 200 J. Insole made from puncture-resistant textile fibers. The ideal teamwork shoe for any occasion.