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Shop size 12C bras at Kayser. From smooth everyday microfibre T-shirt bras to lacy pushup, plunge styles and the Very Smooth One Piece Bra, the 12C collection covers every look, occasion and fabric preference.
Everyday essentials in 12C include the Alive Bandeau Bra with smooth floating cups, the Very Smooth One Piece Bra for a seamless finish and the Total Comfort Wire Free Bra for wire-free support with wide fabric wings. For more structured shaping, underwire styles from Bombshell and Brazilian ranges provide lift and definition as well as lacy options in a 12C.
Browse 12C bras alongside the C cup collection and size 12 lingerie. Free AU delivery on orders over $75.
Find your best fit.
Size Guide| Size | Hip | Waist |
|---|---|---|
| XS (8) | 92 - 97 | 59 - 64 |
| S (10) | 97 - 102 | 64 - 69 |
| M (12) | 102 - 107 | 69 - 74 |
| L (14) | 107 - 112 | 74 - 79 |
| XL (16) | 112 - 117 | 79 - 84 |
| 2XL (18) | 117 - 122 | 84 - 89 |
| 3XL (20) | 122 - 127 | 89 - 94 |
| 4XL (22) | 127 - 132 | 94 - 99 |
| Size | Hip | Waist |
|---|---|---|
| XS (8) | 36 - 38 | 23 - 25 |
| S (10) | 38 - 40 | 25 - 27 |
| M (12) | 40 - 42 | 27 - 29 |
| L (14) | 42 - 44 | 29 - 31 |
| XL (16) | 44 - 46 | 31 - 33 |
| 2XL (18) | 46 - 48 | 33 - 35 |
| 3XL (20) | 48 - 50 | 35 - 37 |
| 4XL (22) | 50 - 52 | 37 - 39 |
| Size | Hip | Waist | Underbust | Cup |
|---|---|---|---|---|
| XS (8) | 92 - 97 | 59 - 64 | 62 - 67 | AA - B |
| S (10) | 97 - 102 | 64 - 69 | 67 - 72 | A - C |
| M (12) | 102 - 107 | 69 - 74 | 72 - 77 | B - C |
| L (14) | 107 - 112 | 74 - 79 | 77 - 82 | B - D |
| XL (16) | 112 - 117 | 79 - 84 | 82 - 87 | C - D |
| Size | Hip | Waist | Underbust | Cup |
|---|---|---|---|---|
| XS (8) | 36 - 38 | 23 - 25 | 24 - 26 | AA - B |
| S (10) | 38 - 40 | 25 - 27 | 26 - 28 | A - C |
| M (12) | 40 - 42 | 27 - 29 | 28 - 30 | B - C |
| L (14) | 42 - 44 | 29 - 31 | 30 - 32 | B - D |
| XL (16) | 44 - 46 | 31 - 33 | 32 - 34 | C - D |
| UK/USA | 30 | 32 | 34 | 36 | 38 |
| AUS | 8 | 10 | 12 | 14 | 16 |
| Underbust Measurement (cm)Measure firmly around ribcage, directly underneath breasts. | |||||
|---|---|---|---|---|---|
| 62 - 67 | 67 - 72 | 72 - 77 | 77 - 82 | 82 - 87 | |
| Overbust Measurement (cm)Measure loosely around fullest part of bust. | |||||
| AA | 72 - 75 | 77 - 80 | 82 - 85 | 87 - 90 | 92 - 95 |
| A | 75 - 77 | 80 - 82 | 85 - 87 | 90 - 92 | 95 - 97 |
| B | 77 - 80 | 82 - 85 | 87 - 90 | 92 - 95 | 97 - 100 |
| C | 80 - 82 | 85 - 87 | 90 - 92 | 95 - 97 | 100 - 102 |
| D | 82 - 85 | 87 - 90 | 92 - 95 | 97 - 100 | 102 - 105 |
| DD | 85 - 87 | 90 - 92 | 95 - 97 | 100 - 102 | 105 - 107 |
| E | 92 - 95 | 97 - 100 | 102 - 105 | 107 - 110 | |
| F | 95 - 97 | 100 - 102 | 105 - 107 | 110 - 112 | |
| G | 102 - 105 | 107 - 110 | 112 - 115 | ||
| H | 105 - 107 | 110 - 112 | 115 - 117 | ||
| Underbust Measurement (in)Measure firmly around ribcage, directly underneath breasts. | |||||
|---|---|---|---|---|---|
| 24 - 26 | 26 - 28 | 28 - 30 | 30 - 32 | 32 - 34 | |
| Overbust Measurement (in)Measure loosely around fullest part of bust. | |||||
| AA | 28 - 29 | 30 - 31 | 32 - 33 | 34 - 35 | 36 - 37 |
| A | 29 - 30 | 31 - 32 | 33 - 34 | 35 - 36 | 37 - 38 |
| B | 30 - 31 | 32 - 33 | 34 - 35 | 36 - 37 | 38 - 39 |
| C | 31 - 32 | 33 - 34 | 35 - 36 | 37 - 38 | 39 - 40 |
| D | 32 - 33 | 34 - 35 | 36 - 37 | 38 - 39 | 40 - 41 |
| DD | 33 - 34 | 35 - 36 | 37 - 38 | 39 - 40 | 41 - 42 |
| E | 36 - 37 | 38 - 39 | 40 - 41 | 42 - 43 | |
| F | 37 - 38 | 39 - 40 | 41 - 42 | 43 - 44 | |
| G | 40 - 41 | 42 - 43 | 44 - 45 | ||
| H | 42 - 43 | 44 - 45 | 46 - 47 | ||