Quick answer

Wear or bring the exact lingerie you plan to wear on your wedding day, including bra, underwear, and any shapewear, to every fitting. This lets your seamstress measure and alter the gown against the real silhouette, so the final fit matches what you will actually wear.

Why the right base layer changes your alterations

A wedding dress is fitted to the body you bring to the appointment, not to an idea of your body. If you wear a different bra or skip shapewear at the fitting, the bust, waist, and hip measurements can shift enough to change how the gown hangs. Bring the same undergarments you plan to wear on the day, and keep them clean and reserved for fittings. If you are still deciding between two options, bring both and try them under the gown with your seamstress.

What to pack in your fitting bag

Pack a small kit the night before: your bra or bustier, underwear, shapewear, any required hosiery, and the shoes you plan to wear. Add nipple covers if you are going braless, and a robe or button-front shirt that is easy to change out of. If your gown has a low back or sheer panels, bring the exact adhesive or backless options you intend to use. A bridal robe such as the Samantha silk kimono robe in Strawberries & Cream colors makes changing between looks simple and keeps you covered if the fitting room is shared.

How to test your lingerie before the appointment

Put on your planned lingerie at home and move around for at least ten minutes: sit, stand, reach overhead, and bend forward. Check for digging, rolling, or visible lines under a similar fabric. If you plan to wear a lace shortie or embroidered set, make sure the edges lie flat under the gown. The Swan Queen scalloped lace shorties in Ivory have a soft organza ruffle stretch waist that sits smoothly, but always test under your actual dress fabric. If something shifts, adjust before the fitting rather than after.

Shapewear vs lingerie: what to choose for the fitting

Shapewear and lingerie serve different purposes. Shapewear smooths and compresses; lingerie adds support, shape, or decorative detail. For a fitting, bring whichever combination you will actually wear. If you plan to wear a bustier for lift and shape, bring it. The Joy Proctor for Girl & a Serious Dream French embroidery lingerie set includes a demi-cup bustier with underwire for support, lift, and shape, which can change how a bodice fits. If you are going without shapewear, that is fine too, but be consistent so the seamstress can mark the correct hem and waistline.

Your step-by-step fitting preparation

  1. Confirm your wedding-day lingerie: Decide on your bra, underwear, and shapewear at least a week before your first fitting. If you are undecided, bring two options and try both under the gown. Checkpoint: you should be able to name exactly what you will wear on the day.
  2. Wear the lingerie to the appointment: Put on your chosen lingerie before you leave home. Bring backups in a bag, along with your shoes and any hosiery. Mistake to avoid: wearing a different bra than your wedding-day one, which can change bust measurements.
  3. Bring your shoes and any special undergarments: Hem length depends on heel height. Bring the exact shoes you will wear, plus any backless or adhesive solutions for low-back gowns. Checkpoint: your seamstress should see the full head-to-toe look.
  4. Test movement in the lingerie before the fitting: Sit, stand, and reach overhead at home. If anything rolls, digs, or shows lines, adjust before the appointment so you are not troubleshooting during it. Mistake to avoid: assuming lingerie will stay put without testing it under similar fabric.
  5. Speak up about comfort and coverage: Tell your seamstress if a bra strap slips, a bodice edge digs, or you want more coverage. Alterations can address these issues only if you mention them. Checkpoint: you should leave the fitting knowing the next adjustment and your next appointment date.

Bridal lingerie that works for fittings

  • Swan Queen Scalloped lace shorties shorts in Ivory: Flirty and feminine shorties featuring floral French lace with scallop edges and a soft organza ruffle stretch waist for comfort. Available in Ivory and Black. True to size. Handmade in the USA. A smooth, true-to-size shortie is easy to wear under a gown during fittings and helps you judge whether lace edges show through your dress fabric.
  • Joy Proctor for Girl & a Serious Dream French embroidery lingerie set: Joy Proctor for Girl & a Serious Dream collection bustier designed in a flattering demi cup, crafted from French lace embroidery with underwire for support, lift, and shape. If you plan to wear a bustier on your wedding day, bringing it to fittings shows your seamstress the exact bust shape and support level the gown must accommodate.
  • Samantha bridal silk kimono robe bridesmaids robes in Strawberries & Cream colors: Signature Samantha silk robe with an easy, draped fit, available in a range of colors. Made of 100% silk. A lightweight silk robe makes changing during fittings quick and comfortable, and it doubles as getting-ready wear on the wedding morning.