Size Guide

Lovable size guide: find your women's and men's underwear size

Updated November 2026

With the Lovable size guide, choosing the right size of bra, briefs, pyjamas or men's underwear is easy: take your measurements with a tape measure and compare them with the charts below. You'll also find how Italian sizes convert to international sizes (UK, FR/ES, EU, XS–XXXL).

• How to measure yourself
• Women's bras and swimwear
• Sister sizes
• Bras in S, M, L, XL
• Women's briefs and bottoms
• Women's pyjamas and tops
• Men's underwear and pyjamas
• FAQ

How to take your underwear measurements

All you need is a tape measure: keep it snug against your body without pulling it tight, always straight and at the same height all the way round.

How to measure your bra size

How to measure for briefs, pyjamas and men's underwear

• Chest (men): measure around the fullest part of your chest, just under your armpits.
• Waist: measure around the narrowest part of your torso, at navel height.
• Hips: measure around the widest part of your bottom, with your feet together.

If you're between two sizes, choose the larger one for close-fitting garments and the smaller one for stretchy garments.

Women's bra and swimwear size chart

Find the row with your underbust, then the column with your bust measurement: where they meet is your bra size (for example 3C). The chart also shows the equivalent UK, FR/ES and EU sizes.

Example: with the Lovable size chart, if your underbust measures 75 cm and your bust 92 cm, your size is 3C, which is 34C in UK sizes, 90C in FR/ES sizes and 75C in EU sizes.

Bra sister sizes

Sister sizes have the same cup volume with a different band: if your size isn't available or the band feels too tight, try a sister size. Boxes of the same colour are sister sizes (for example 2D, 3C and 4B).

Only consider the boxes closest to the size you found.

Sister size groups: 1B = 2A; 1C = 2B = 3A; 1D = 2C = 3B = 4A; 1E = 2D = 3C = 4B = 5A; 1F = 2E = 3D = 4C = 5B = 6A; 1G = 2F = 3E = 4D = 5C = 6B = 7A; 2G = 3F = 4E = 5D = 6C = 7B; 3G = 4F = 5E = 6D = 7C; 4G = 5F = 6E = 7D; 5G = 6F = 7E; 6G = 7F.

Bra size conversion to S, M, L, XL

Many non-wired bras, bralettes, sports tops and swimsuits are sold in S, M, L and XL. Look up your bra size (band and cup) in the chart to find which international size to choose: for example, a 3B is a size M.

In short: S = 1C, 2B, 3A; M = 2C, 3B, 4A; L = 3C, 4B, 5A; XL = 4C, 5B, 6A.

Women's briefs and bottoms size chart

For briefs, shorts, Brazilian briefs and bikini bottoms, your hip measurement matters most: if your waist and hips fall into different sizes, go with your hip size.

Women's pyjamas and tops size chart

For pyjamas, nightdresses, camisoles and women's undershirts, use your bust as the main reference and check your hip measurement for trousers.

Men's underwear and pyjamas size chart

For boxers, briefs and trunks, go by your hip measurement; for vests, undershirts and men's pyjamas, go by your chest.

Underwear sizing FAQ