- THE ROW ss new spring and summer beach flip-flops do not have fancy or childish designs. They are simple flip-flops with a unique stitching on the feet. They are good-looking and not uncomfortable on the feet. They look simple and are more comfortable on the feet. Temperament! Invincible and versatile! Upper: cowhide, lining: sheepskin, sole: Italian genuine leather outsole, size: 35-39 (custom-made sizes 40 are non-refundable),