Do you Dare to Dominate? Introducing the new Tacks 9050 skate! Features: QUARTER PACKAGE: Injected Technology with Synthetic Composite. Durable boot with structural stiffness. LINER: HD Micro Fiber. Comfortable and high resistance to wear. TONGUE: 7mm felt for comfort and protection. OUTSOLE: Injected outsole helps energy player's transfer with every stride. FOOTBED: CCM footbed provides support and comfort. HOLDER/RUNNER: SpeedBlade Pro is a non-replaceable stainless steel blade with an elevated holder for increased attack angle.