Comparing a 30C with 30D in Ongossamer Gossamer Mesh Convertible T-shirt Bra (013800)

Summary

The band is the same length in both bras. The 30D bra has bigger cups and they are a lot deeper and wider than the 30C bra.

Sizing

The 30C is 1 cup smaller than the 30D.

	30C 30:3 Ongossamer Gossamer Mesh Convertible T-shirt Bra (013800)	30D 30:4 Ongossamer Gossamer Mesh Convertible T-shirt Bra (013800)
Fits ribcage
	0.0	0.0
Breast perimeter
	0.0	0.0
Band length
	57.8	57.8
Stretched band
	78.7	78.7
Cup width
	12.1	13.3 (+1.3cm)
Cup depth
	15.9	19.1 (+3.2cm)
Wire length
	18.1	20.3 (+2.2cm)
Cup height
	11.4 (+11.4cm)	0.0
Gore height
	4.4 (+1.6cm)	2.9
Wing height
	7.0	8.3 (+1.3cm)
Strap width
	1.3 (+0.3cm)	1.0
Cup separation
	2.5 (+0.6cm)	1.9
Hooks
	2	2
Total bras
	2	4