Asics GEL-QUANTUM 360 I AMP combines full-circle GEL® cushioning with FF BLAST™ PLUS foam to deliver responsive, everyday comfort and support. Key attributes: Brown | Grey | Mesh | 360° GEL® cushioning | FF BLAST™ PLUS cushioning for everyday responsiveness | Optimized traction for daily wear | Integrated 360° GEL® core | Closed mesh upper for secure fit | Rubber outsole for durable traction | Anniversary Quantum 360 design | Closed mesh upper | Chiseled rubber rails that accentuate depth | Composition & care: Mesh upper | FF BLAST™ PLUS foam | 360° GEL® core | Rubber outsole