The NOVABLAST 4 TR running shoe offers a bouncy, responsive running experience for distance training and recovery run. This shoe features a new midsole and outsole geometry that helps produce an energized ride. It's designed with a trail-specific outsole that's functional for running on off-road surfaces. The trampoline outsole geometry is updated, for a more energetic toe off and improved grip. A tongue wing construction in the upper helps improve the fit while reducing tongue movement.