Fashion Forms Size & Fit Guide

← Fit by Brand

Find the right fit for Fashion Forms bra accessories, including petals, extenders and replacement straps. Choose by coverage or compatible hardware, such as hook count and spacing, rather than applying a bra cup conversion.

Fit by product & style

Accessory sizing

Choose by the accessory’s coverage or compatible bra hardware. Bra cup conversions do not determine petal size, hook count or strap width.

Choose by coverage or hardware

Fashion Forms accessory fit reference
Accessory What to match
Reusable Waterproof Petals S/M label on our product; check desired coverage
Ultimate Silicone Petals One-size coverage accessory; no band/cup conversion
Bra Extenders 2-, 3- or 4-hook option; match hook count and spacing
Invisible Bra Straps Regular or Wide; match removable-strap attachments

An extender changes band length and does not increase cup capacity. Our assorted extenders are described as adding up to two inches to a compatible band. Choose compatible hooks rather than converting your bra into another cup size.

Petals provide coverage rather than the support of a bra. Follow the application and care directions on your product. For invisible straps, first check that the bra’s original straps can be removed and that the attachment fits.

Fit reference: LaBella’s Fashion Forms product descriptions.

How to check accessory fit

For extenders, count the hooks and check their spacing against your bra before use. For replacement straps, check the attachment and strap width. For petals, choose comfortable coverage and follow the product’s application instructions.

If you need a measurement such as petal diameter, strap width or hook spacing, ask our team about the exact accessory.

Shop styles covered by this guide

Open your product to see its size options and fit notes. Listed size ranges do not imply every band-and-cup combination is available.

Need help with this style?

Send us the product name, your measurements, and the brand and size of a garment that fits you well. For bras, include snug underbust and full bust; for bottoms include waist and hips. We can confirm the cup convention and size range for the exact style. Contact our fitting team or learn about a LaBella bra fitting.