Youth Grindhouse Pro Jersey. The Casual Racer. The Youth Grindhouse Pro Collection, designed with the racer in mind, features the Fasthouse athletic cut. With its sleek fit and superior materials, the Grindhouse Pro series will ensure you'll look great with increased performance. Athletic fit - tapered torso and sleeves with a V-shaped collar. Quick-drying stretch fabric to help keep you dry - 94% / 4%% spandex / 2% unknown. Overlocked stitching for superior durability and longevity. Vented mesh back panel and under sleeve for airflow. Fully sublimated color and artwork for long lasting quality and a sleek feel.