Start with measurements from the shoulder to the bust point, the bust to the underbust, and half the nipple-to-nipple distance.

For dress bodices, consider adding a half-inch to an inch of extra seam allowance to the front length to ensure the waistline sits correctly below the bust rather than riding up. 3. DIY Breastplates for Cosplay

Rather than using a single 6mm piece of foam, layer three 2mm EVA foam sheets together with contact cement. This "sandwich" holds a curved shape much better under the weight of a larger design.

For costume enthusiasts, standard foam patterns often don't provide the necessary curvature for a larger bust.

You can use hooks to strap foam breastplates directly onto a supportive bra to keep the armor from shifting during wear. 4. Quick Fixes: Modesty & Fit

Use fusible fleece or laminated bra foam for a steady, strong structure. For extra stability, double up on layers of firm powernet for the bra band.