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Boost Bras

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Shop Boost Bras by Fine Lines, a collection of elegant push up padded bras designed to make breasts look bigger without sacrificing fit or comfort.

Size Guide

Find your best fit.

Size Guide
Knickers
CM IN
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
Bodysuits, Camis & Chemises
CM IN
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
Soft Cup Bras
CM IN
Band
Triangle Cup
UK/USA 30 32 34 36 38
AUS 8 10 12 14 16
Underband (cm)
62 - 67 67 - 72 72 - 77 77 - 82 82 - 87
A S S/M M L XL
B S S/M M L XL
C S S/M M L XL
D S S/M M L XL
Underband (in)
24 - 26 26 - 28 28 - 30 32 - 34 34 - 36
A S S/M M L XL
B S S/M M L XL
C S S/M M L XL
D S S/M M L XL
Bra size calculation chart
CM IN
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

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