Nivia VAYU Volleyball – The Champion’s Choice . NIvia VAYU isn’t just a volleyball it’s a game-changer. Crafted with premium Microfiber PU NIVIA VAYU Volleyball delivers an unbeatable grip while the Butyl Threadwound bladder keeps the ball in play longer. Designed to meet FIVB standards this is the go-to ball for serious competitors who refuse to compromise on quality.