i have been looking at these shoes for months,  after i purchased a similar pair in the early summer. fly london makes very original designs and thus far i have 3 pairs, including boots and 2 pairs with this unique sole. i am very active and my work involves standing for 13 hrs/day. i look for style, comfort and usability. these yogo boots are so terrific, i have worn them every day since they arrived. i would buy additional colors, but the price is a bit steep, and perhaps they might go on sale as time evolves. they are well made, the leather is high quality, but it is the style and the sole that sold me. i like the wrap around velcro closure, it transforms a shoe into almost a boot. they feel secure while walking and do not loosen as the day goes on. the sole is flexible, stable, and i really like the additional hight since many of my pants are long this year. the size is true, i wear a 9 in closed shoes, and the "40" fits perfect. i am sold on fly london, and i love that amazon has the biggest selection and the best prices that i have seen, and i have scouted extensively. you won't see these at the mall, or on everyone else. love them!