Brand new, never worn. Im 6.5 and just a tad tight on my left foot. No box unfortunately but clean unused and comes with extra laces. "On's 'Cloud' sneakers are designed with innovative CloudTec® and Zero-Gravity technology that provides optimum cushioning, support and performance, no matter the terrain you're running on. They're made from mesh that has antimicrobial properties, while Speedboard® transforms energy into forward motion upon landing. The speed-lacing system ensures they're easy to get on and off while the molded heel provides a snug fit.'