Read her to learn about tasc Performance sizing.

Women

Measure  Find your size in cm tasc ikon
 tasc size 
 Danish size   Sandi sizing


As an example, my sizes are: breast = 85, under breast = 68, waist = 73,
hips = 87, and I use Small.
breast 76 - 83 XS 32
34
under breast* 62 - 66
waist 60 - 65
hips 78 - 84
breast  83 - 88 S 36
38
under breast*  66 - 70
waist  66 - 72
hips  84 - 90
breast 88 - 93 M 38
40
under breast* 70 - 74
waist 73 - 78
hips 90 - 95
breast  93 - 98 L 42
under breast* 74 - 78
waist  78 - 84
hips 95 - 100
breast 99 - 104 XL 44
under breast* 78 - 82
waist 84 - 90
hips 100 - 105


*Only used for sports bras


Herre

Measure  Find your size in cm tasc ikon
tasc size 
 Wiki* size 
 sizing John

As an example, my sizes are: chest = 98, waist = 86, inseam = 83. I use Medium for most shirts, except I prefer Large for the merino tops with thumbholes (e.g. 1/4-zip merino top). For pants I am at the border for Medium or Large. I prefer M for the boxer shorts, but Large for the Compression Tights.
 chest 90 - 95 S 46 - 48
 waist 76 - 78 46
 inseam  79 - 81 46
 chest 96 - 105 M 48 - 52
 waist 79 - 84 48
 inseam 81 - 83 48 - 50
 chest 106 - 112 L 52 - 56
 waist 85 - 89 50
 inseam 83 - 85 50 - 52
 chest 113 - 122 XL 56 - 60
 waist 90 - 97 52 - 54
 inseam 85 - 86 54 - 56
 chest 123 - 130 XXL 60 - 62
 waist 98 - 105 56 - 58
 inseam 86 - 88 56 - 58


*Wikipedia:  http://da.wikipedia.org/wiki/Tøjstørrelser