Shop size 10A bras at Kayser. The 10A collection covers smaller bust styles including wirefree bralettes and lightly padded T-shirt bras, all designed for a flattering, reliable fit in a 10A size. Soft fabrics, adjustable straps and a range of classic and seasonal colours across everyday essentials and special-occasion styles.

When shopping for a 10A bra, fit depends on both measurements working together. The band size (10) controls how firmly the bra sits against your body and provides around 80% of the total support. The cup size (A) determines the volume of fabric needed to fully encase the bust without gaping at the top or causing spillage at the sides. A correctly fitting 10A bra should have a band that sits parallel to the floor, cups that lie completely flat against the skin and straps that sit comfortably without digging in.

The 10A range includes styles from Kayser's most best-selling everyday collections: the Alive collection in soft brushed microfibre, smooth styles from Very Smooth, lacy options from Brazilian and everyday essentials from Be Real. New seasonal colourways are added throughout the year.

Browse size 10A bras alongside everyday underwear in size 10 to build a complete lingerie collection. Also explore adjacent cup sizes for sister sizing options. Free AU delivery on orders over $75.