STITCHED & STITCHED: Innovative training ball that combines two technologies. STITCHED & STITCHED: Innovative training ball that combines two technologies. Our hybrid training ball is the ideal companion for your next training: thanks to the innovative manufacturing method, it is particularly durable and hard-wearing and at the same time impresses with its excellent playing properties. So that the rebound is optimal even with less air in the ball, the Pure Grip No. 3 hybrid equipped with foam inside. Super practical: the handball is very easy to grip with or without resin.