The JETSPEED FT670 skates are made from CCM’s ONE PIECE BOOT technology, designed to give you more direct energy transfer. They also provide a snugger, more personalized fit, for faster strides on the ice. Made of high-density microfiber, the liner offers both comfort and high resistance to wear, so you can really take advantage of those strides all season long. Features: QUARTER PACKAGE: ONE-PIECE BOOT: Players get more direct energy transfer and a closer fit for faster strides. STIFFNESS: 150: Solid core for great skating performance. LINER: HD MICROFIBER: High resistance to wear with added EVA layer delivering major fit and comfort. TONGUE: ASYMMETRICAL FELT: 7mm felt with embossed lace-bite for comfort and protection. FOOTBED: MOLDED CCM ORTHOLITE ULTRA: Ultra-lightweight comfort, molded fit, and enhanced comfort. HOLDER: SPEEDBLADE XS: CCM quick-release holder with bladelock system. RUNNER: CCM XS: Stainless steel runner.