Material: Knit Lining: 100% soft, breathable cotton and Blister-free fit! Leather Insole: Soft, cushioned padding with Superb arch support.Jelly Outsole: Lightweight, dynamic flexibility wih Slip resistance. Easy Care: Machine washable just remove leather insole. Replacement soles available for sale separately. These flat shoes give you Support You Can See and Feel! Arch, Ball, and Heel Cushioning. Made of soft, resilient foam helps redistribute weight around ball/toe. Airvents on bottom insole, for breathability.SIZE CHART: Please refer the size chart in product description 5th picture before ordering. EU Sizing :Size up for best fit,eg US8 = EU 39. Benefits of comfortable shoes for women: These flats reduce friction/blister and relieve pressure, helps to ease fatigue and discomfort-Reduces soreness from walking.