Vionic Women's Escapade Advance Non-Slip Sneakers, size 8.5, in excellent preowned condition. New to Poshmark? Use the QR code above or sign up using the code THISTLETHRIFTER for $10 off your first Purchase. Experience comfort and style with these supportive Vionic washable slip-on shoes that include a built-in arch support orthotic footbed that corrects pronation and helps reduce heel pain. Sleek black slip on sneakers in a minimalist style, Perfect for everyday wear, easy days, the beach etc.