Comparing a 30DD with 30DDD in Wacoal Basic Beauty T-shirt Spacer Bra (853192)

Summary

The band is pretty much the same in both bras. The 30DDD bra has deeper cups than the 30DD bra, but they are about the same width.

Sizing

The 30DD is 1 cup smaller than the 30DDD.

	30DD 30:5 Wacoal Basic Beauty T-shirt Spacer Bra (853192)	30DDD 30:6 Wacoal Basic Beauty T-shirt Spacer Bra (853192)
Fits ribcage
	73.4	73.4
Breast perimeter
	23.3	24.7 (+1.4cm)
Band length
	54.5 (+0.0cm)	54.5
Stretched band
	72.4	72.4
Cup width
	12.6	12.9 (+0.3cm)
Cup depth
	19.4	21.0 (+1.6cm)
Wire length
	22.1	24.9 (+2.7cm)
Cup height
	16.2	18.7 (+2.6cm)
Gore height
	6.3	7.4 (+1.1cm)
Wing height
	8.9	9.9 (+1.0cm)
Strap width
	1.8 (+0.1cm)	1.7
Cup separation
	1.9	2.6 (+0.7cm)
Hooks
	3	3
Total bras
	8	11

People who have both bras say: