Hit your health goal by sweating it out in the Nike Air Relentless 6 running shoe. Predecessor: Air Relentless 5. Support Type: Neutral to underpronation (supination). Cushioning: Light, flexible response. Surface: Road. Differential: Not provided. Breathable, single-layer mesh and synthetic upper materials. Lace-up closure. Padded tongue and collar. Fixed foam insole. Nike Air midsole provides resilient underfoot cushioning. Full-length rubber outsole delivers lasting durability and traction. Imported. Measurements: Weight: 11 oz Product measurements were taken using size 11.5, width D - Medium.Weight of footwear is based on a single item, not a pair.