Mitre Delta One Football Features:. League quality ball constructed for players at the top of their game. Pin-point accuracy - Textured Hyperflow grooves ensures your strikes are always on target. Precision strikes - Targeted Hyperflow grooves improve in-flight consistency and reduce drag for pinpoint passing. Consistent Play - Thermally bonded Hyperseal construction for zero water absorption. Enduring construction - Designed for durability and outstanding abrasion resistance (+90%* more durable compared to previous model). FIFA Quality Approved. Suitable for grass or Astro surfaces. 11% PU, 17% RB foam, 69% synthetic rubber, 3% polyester