Purchased from the official website. Brand new, unused. Price is not negotiable. Will be shipped in simple packaging. Shipping will take 4-7 days. Thank you. [Excerpt from the official website below] ● Forms the three arches of the foot (heel, ball of the big toe, ball of the little toe) and supports correct posture and walking. ● Simply wearing it will improve posture and support beautiful posture. Supports dieting by increasing the muscle activation rate of the whole body, aiming for a body that is easier to lose weight. Non-slip design ensures safety and can be used easily like socks. Excellent for use as yoga or gym shoes. Moisture-wicking and quick-drying fabric prevents stuffiness and odor. Cross-fitting stitching wraps the foot from the sole to the instep.