Use chest, waist, and hip measurements as the baseline. Tag size is helpful, but measurements are more reliable across brands and decades.
Find My Fit
Universal sizing guide
Find My Fit
Diversity Universal Sizing gives shoppers one consistent starting point across brands, eras, and gendered size systems. Use your body measurements to find a D1 through D10 reference size, then adjust for fabric, cut, stretch, and personal comfort.
Diversity size reference
Size
Chest
Waist
Hips
D1
28 to 31 in.
22 to 24 in.
30 to 33 in.
D2
31 to 33 in.
24 to 26 in.
33 to 35 in.
D3
33 to 36 in.
26 to 29 in.
35 to 38 in.
D4
36 to 39 in.
29 to 32 in.
38 to 41 in.
D5
39 to 42 in.
32 to 35 in.
41 to 44 in.
D6
42 to 45 in.
35 to 38 in.
44 to 47 in.
D7
45 to 48 in.
38 to 42 in.
47 to 51 in.
D8
48 to 52 in.
42 to 46 in.
51 to 55 in.
D9
52 to 56 in.
46 to 50 in.
55 to 59 in.
D10
56 to 60 in.
50 to 54 in.
59 to 63 in.
How to read fit in resale
Stretch, fabric weight, rise, shoulder width, and intended silhouette can change how the same size feels on the body.
The right size depends on comfort, proportion, styling intention, and how you want the garment to sit.