The Fuse 3.0 is a game-changer in stability, fit and traction. This training shoe is athlete-inspired and community-tested for strength and enhanced cushioning. Upgrade your workout with the Fuse 3.0. PUMAGRIP: Durable rubber outsole that provides multi-surface traction. New last for wider, stronger stance. TPU heel piece for stability. Mesh upper. Piped Formstrip on lateral side. "FUSE" branding on tongue.