FF Cup Size

FF cup bras provide exceptional support and comfort across band sizes 28 to 48. Finding the right fit is essential for proper support, and our collection features a wide range of styles including plunge, balconette, full cup, t-shirt, sports, and wireless designs to suit different preferences and occasions.

Not sure about your size? Use our bra size calculator to find your perfect fit. If you're exploring nearby sizes, our F cup bras and G cup bras offer the same quality and fit. Free UK delivery is included on all orders.

What Are FF Cup Bras?

FF cup bras are designed for those with a 6-inch difference between band measurement and bust measurement. This cup size sits between F and G cups in the UK sizing system, with band sizes available from 28 to 48. FF cups provide additional support compared to smaller cup sizes, using features such as wider straps and reinforced bands.

What Styles Are Available in FF Cup?

FF cup bras are available in plunge, balconette, full cup, t-shirt, sports, and wireless styles. Full cup designs provide maximum coverage and support for everyday wear, whilst plunge styles work well under lower necklines. Sports bras in FF cup include high-impact designs with features such as adjustable straps, encapsulation support, and moisture-wicking fabrics for activities including running and gym workouts.

How Should an FF Cup Bra Fit?

A properly fitted FF cup bra sits firmly around the ribcage with the band parallel to the ground. The underwire should rest where the breast meets the ribcage, with no spillage or gaping in the cups. The centre gore should lie flat against the chest, and the band should provide 80% of the support. Straps should sit comfortably on the shoulders without digging in or slipping off.

What Are Sister Sizes for FF Cup?

Sister sizes maintain the same cup volume whilst adjusting the band size. For a 34FF bra, sister sizes include 32G (smaller band, larger cup) and 36F (larger band, smaller cup). These alternatives are useful when your usual size is unavailable or when fine-tuning fit between sizes. All sister sizes in the same row share identical cup volume.

Which Brands Make FF Cup Bras?

Trusted brands offering FF cup bras include Panache, Freya, Elomi, Fantasie, and Curvy Kate. These manufacturers specialise in fuller bust support and engineering, using features such as wider straps, reinforced bands, and side support panels. Each brand offers different fits and styles to accommodate various breast shapes and preferences.

What Should I Look for When Buying FF Cup Bras?

Key features to consider include wide straps, supportive underwires, and a firm band. Look for bras with 3-4 hook fastenings for adjustability and longevity. Side support panels help minimise movement and provide a lifted shape, whilst cushioned straps prevent shoulder discomfort. The cup should fully encapsulate breast tissue without spillage at the top or sides.

How Do I Care for FF Cup Bras?

Hand washing in cool water extends the lifespan of FF cup bras. Use a gentle detergent and avoid twisting or wringing the fabric. Fasten hooks before washing to prevent snagging, and allow bras to air dry flat or hanging by the centre gore. Rotating between 3-5 bras allows elastic to recover between wears, maintaining support and shape for longer.

Need Help Finding Your Perfect FF Cup Bra?

Browse our full collection of FF cup bras above, featuring styles from leading brands in sizes 28 to 48. If you need fitting advice or have questions about sizing, our bra sizing guide provides detailed information to help you find the perfect fit. Free UK delivery is included on all orders.

Related Sizes