Fit & Size Guides

4Tonight fit guide

Lingerie Size Guide

A softer fit starts with better measurements. Use this guide to choose bras, lace sets, bodysuits, chemises, and intimate pieces with more confidence. If you are between two sizes, we usually recommend sizing up for comfort, especially for styles with less stretch.

Bra guide Intimates guide Fit notes

Bra Size Guide

For best results, wear an unpadded or lightly padded bra and use a soft measuring tape. Keep the tape level around your body without pulling too tightly.

1

Measure underbust

Wrap the tape snugly around your ribcage, directly under your bust. This gives your underbust measurement.

2

Measure bust

Measure around the fullest part of your bust. Keep the tape straight across your back and relaxed at the front.

3

Find your cup

Subtract your band size from your bust measurement. The difference helps estimate your cup size.

Underbust 27-28 in
68-72 cm		 29-30 in
73-77 cm		 31-32 in
78-82 cm		 33-34 in
83-87 cm		 35-36 in
88-92 cm		 37-38 in
93-97 cm		 39-40 in
98-102 cm
US / UK band 32 34 36 38 40 42 44
EU / CN band 70 75 80 85 90 95 100
Bust minus band 1 in
2.5 cm		 2 in
5 cm		 3 in
7.5 cm		 4 in
10 cm		 5 in
12.5 cm		 6 in
15 cm		 7 in
17.5 cm
Estimated cup A B C D DD / E DDD / F G

Bra sizing is a guide, not a rule. Your best size can shift slightly depending on cup shape, wire style, fabric stretch, and how much lift or coverage you prefer.

Intimates Size Guide

Use this chart for lingerie sets, bodysuits, chemises, teddies, robes, and most S-XXXL styles. For adjustable lace pieces, choose by bust and hips first.

Alpha size S M L XL XXL XXXL
US numeric 2-4 6-8 10-12 14-16 18-20 22
Bust 33-35 in
84-89 cm		 36-37 in
91-94 cm		 38-39 in
96-99 cm		 40-41 in
101-104 cm		 42-44 in
106-112 cm		 45-48 in
114-122 cm
Waist 27-28 in
68-71 cm		 29-30 in
73-76 cm		 32-33 in
81-84 cm		 34-35 in
86-89 cm		 36.5-38 in
92-96 cm		 39.5-41 in
100-104 cm
Hips 37-38 in
94-97 cm		 39-40 in
99-102 cm		 41-42 in
104-107 cm		 43-44 in
109-112 cm		 45.5-47 in
115-119 cm		 48.5-50 in
123-127 cm
Common bra fit 32C, 34B 34C, 36B 34D, 36C, 38B 34DD, 36D, 38C 34DDD, 36DD, 38D 36DDD, 38DD, 40D

Many lace and mesh styles have adjustable straps or tie details. If your bust and hips fall into different sizes, choose the size that best fits the less adjustable area.

Fit Notes

If between sizes

Choose the larger size for comfort, especially in bodysuits, garter sets, and styles with less stretch.

For fuller busts

Look for underwire, adjustable straps, wider bands, or cup-shaped construction for better support.

For lace and mesh

Delicate fabrics should sit close to the body without digging in. If the trim rolls or pulls, size up.

For bodysuits

Check bust, waist, hips, and torso comfort. If you are tall or long-torsoed, sizing up may feel better.