Do not rely on memory; keep a note in your phone of her band size (the number) and cup size (the letter).
Sizes vary between manufacturers. Check 2–3 different bras to see if she is consistently the same size. how to buy a bra for your wife
Peek into her lingerie drawer or laundry basket while she is away. Look for a number and a letter (e.g., 34C). Do not rely on memory; keep a note
If she cuts out her tags, try asking her best friend—they often know or can find out discreetly. Step 2: Identify Her Style Peek into her lingerie drawer or laundry basket
Buy something she actually likes to ensure she feels confident and comfortable. Tips for How to Buy Lingerie for Your Wife That She'll Love
Since 80–85% of women wear the incorrect bra size, guessing is not an option.