camel black apricot green 21-size 25 is the side zipper to wear and take off 26-size 37 is slip-on and off

size 21 insole length 13. 5cm size 22 shoe length 14.0cm size 23 insole length 14. 5cm size 24 insole length 15. 0cm size 25 insole length 15. 5cm size 26 insole length 16. 0cm size 27 insole length 16. 5cm size 28 insole length 17.0cm size 29 insole length 17. 5cm size 30 insole length 18. 5cm size 31 insole length 19. 0cm size 32 insole length 19. 5cm size 33 insole length 20. 0cm size 34 insole length 21.0cm size 35 insole length 21. 5cm size 36 insole length 22.0cm size 37 insole length 22.5cm 21-size 25 starting from 5 pairs 26-size 30 the whole first 5 pairs 31-size 37 starting from 7 pairs 21-size 25 and 26-size 37 have different wearing and taking-off methods