neoprene sandals 100% barefoot parameters - fully flexible sole in all directions along the entire length heel in the plane with the toe, unshaped insole, extra light shoes anatomically shaped toe box suitable for dominant big toe and "fins" tightening to 2 Velcro straps fits on average and plump legs, wider even in the heel area removable insole, without anatomical shaping more detailed description of the Beda barefoot series and photos of flexibility: www.littleshoes.cz/beda/ Beda Pink Military Sandals (BF 0001 / SD / W / NP)