Bloch Flow Slip OnBloch Flow Slip on features a breathable mesh upper, which works in harmony with a soft full grain leather to provide the dancer with a combination of comfort, function and aesthetics. Other features include a mesh arch for perfect fit and air punched insoles for foot aeration Fitting: Women: Order street shoe or 1 2 size larger. Men: Order 2 or 2 1 2 sizes larger than street shoe.