Do you have doubts about the size?

BOY SNEAKERS
EUR 38.5 39 40 40.5 41 42 42.5
US 6 6.5 7 7.5 8 8.5 9
UK 5.5 6 6.5 7 7.5 8 8.5
CM 24 24.5 25 25.5 26 26.5 27
EUR 43 44 44.5 45 45.5 46 47
US 9.5 10 10.5 11 11.5 12 12.5
UK 9 9.5 10 10.5 11 11.5 12
CM 27.5 28 28.5 29 30 30.5 31

GIRL SNEAKERS
EUR 35.5 36 36.5 37.5 38 38.5 39
US 5 5.5 6 6.5 7 7.5 8
UK 2.5 3 3.5 4 4.5 5 5.5
CM 22 22.5 23 23.5 24 24.5 25
 
EUR 40 40.5 41 42
US 8.5 9 9.5 10
UK 6 6.5 7 7.5
CM 25.5 26 26.5 27
US: AMERICA SIZE
UK: UK SIZE
EUR: EUROPE SIZE
* THE MEASUREMENT IN CENTIMETERS GOES FROM THE TOE TO THE HEEL.
** GUIDELINE FOR CALCULATING SIZE, EACH MODEL HAS A DIFFERENT SHAPE.

BOY CLOTHING
TOP PARTS BOY
INTL XS S M L XL XXL
Height 158-163 with an estimated weight 54-59 kg Height 162-168 with an estimated weight 57-65 kg Height 168-175 with an estimated weight 64-70 kg Height 173-179 with an estimated weight 68-75 kg Height 175-182 with an estimated weight 77-88 kg Height 180-190 with an estimated weight 84-90 kg

BOY BOTTOM PARTS
INTL XS S M L XL XXL  
EUR 38 40 42 44 46 48
US 28 30 32 34 36 38

GIRL'S CLOTHING
TOP PARTS GIRL
INTL XS S M L XL
Height 148-155 with an estimated weight 43-49 kg Height 153-159 with an estimated weight 48-54 kg Height 158-165 with an estimated weight 52-58 kg Height 164-170 with an estimated weight 58-65 kg Height 169-175 with an estimated weight 65-72 kg

BOTTOM PARTS GIRL
INTL XS S M L XL    
EUR 34 36 38 40 42
US 6 8 10 12 14
STANDARD FIT: TRADITIONAL FIT TO THE WAIST.
LONG FIT: THEY ARE T-SHIRTS OR SWEATSHIRTS WITH A LONGER THAN USUAL LENGTH.
OVERSIZE: WIDELY SIZED GARMENTS.
* IN THE DESCRIPTION OF EACH PRODUCT YOU WILL FIND THE INFORMATION ON HEIGHT, WEIGHT AND SIZE THAT THE MODEL WEARS SO YOU CAN APPROXIMATE WHAT YOU WOULD WEAR. ALSO IMPORTANT INFORMATION: OVERSIZE, STANDARD FIT, LONG FIT, ETC.
** TAKE INTO ACCOUNT IF THE PRODUCT COMPOSITION CONTAINS ELASTANE WHEN SELECTING THE SIZE.
*** NOT ALL BRANDS HAVE THE SAME PATTERN, SO YOU WILL NOT WEAR THE SAME ONE FROM ALL BRANDS SIZE.
**** MANY GARMENTS ARE UNISEX, JUST CONSIDER TO CHOOSE ONE OR TWO SIZES MORE OR LESS THAN USUAL.