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Size guide

Cosmo Active Set

Cosmo Flow Active Set

This set includes two pieces: one sports bra and one pair of leggings. Choose each size independently before adding the bundle to your bag.

The sports bra is best for A–C cups and low to medium intensity movement. If you are between sizes, choose based on the fit you prefer: closer for more support, or one size up for more ease.
Sports bra measurements in inches
Size Bust Under bust
XS 33 ⅛ 25 ¼
S 34 ⅝ 26 ¾
M 36 ¼ 28 ⅜
L 39 ⅜ 31 ½
XL 42 ½ 34 ⅝
2XL 45 ⅝ 37 ¾
Sports bra measurements in centimeters
Size Bust Under bust
XS 84 64
S 88 68
M 92 72
L 100 80
XL 108 88
2XL 116 96
Leggings measurements in inches
Size Waist Hips
XS 25 ¼ 35 ⅜
S 26 ¾ 37
M 28 ⅜ 38 ⅝
L 31 ½ 41 ¾
XL 34 ⅝ 44 ⅞
Leggings measurements in centimeters
Size Waist Hips
XS 64 90
S 68 94
M 72 98
L 80 106
XL 88 114
Cosmo Flow Active Set
Cosmo Pulse Short Set

This set includes two pieces: one sports bra and one pair of shorts. Choose each size independently before adding the bundle to your bag.

The sports bra is best for A–C cups and low to medium intensity movement. If you are between sizes, choose based on the fit you prefer: closer for more support, or one size up for more ease.
Sports bra measurements in inches
Size Bust Under bust
XS 33 ⅛ 25 ¼
S 34 ⅝ 26 ¾
M 36 ¼ 28 ⅜
L 39 ⅜ 31 ½
XL 42 ½ 34 ⅝
2XL 45 ⅝ 37 ¾
Sports bra measurements in centimeters
Size Bust Under bust
XS 84 64
S 88 68
M 92 72
L 100 80
XL 108 88
2XL 116 96
Shorts measurements in inches
Size Waist Hips
XS 25 ¼ 35 ⅜
S 26 ¾ 37
M 28 ⅜ 38 ⅝
L 31 ½ 41 ¾
XL 34 ⅝ 44 ⅞
2XL 37 ¾ 48
3XL 41 51 ⅛
Shorts measurements in centimeters
Size Waist Hips
XS 64 90
S 68 94
M 72 98
L 80 106
XL 88 114
2XL 96 122
3XL 104 130
Cosmo Pulse Short Set
Cosmo Glow Short Set

This set includes two pieces: one sports bra and one pair of shorts. Choose each size independently before adding the bundle to your bag.

The sports bra is best for A–C cups and low to medium intensity movement. If you are between sizes, choose based on the fit you prefer: closer for more support, or one size up for more ease.
Sports bra measurements in inches
Size Bust Under bust
XS 33 ⅛ 25 ¼
S 34 ⅝ 26 ¾
M 36 ¼ 28 ⅜
L 39 ⅜ 31 ½
XL 42 ½ 34 ⅝
2XL 45 ⅝ 37 ¾
Sports bra measurements in centimeters
Size Bust Under bust
XS 84 64
S 88 68
M 92 72
L 100 80
XL 108 88
2XL 116 96
Shorts measurements in inches
Size Waist Hips
XS 25 ¼ 35 ⅜
S 26 ¾ 37
M 28 ⅜ 38 ⅝
L 31 ½ 41 ¾
XL 34 ⅝ 44 ⅞
2XL 37 ¾ 48
3XL 41 51 ⅛
Shorts measurements in centimeters
Size Waist Hips
XS 64 90
S 68 94
M 72 98
L 80 106
XL 88 114
2XL 96 122
3XL 104 130
Cosmo Glow Short Set
Cosmo Orbit Legging Set

This set includes two pieces: one sports bra and one pair of leggings. Choose each size independently before adding the bundle to your bag.

The sports bra is best for A–C cups and low to medium intensity movement. If you are between sizes, choose based on the fit you prefer: closer for more support, or one size up for more ease.
Sports bra measurements in inches
Size Bust Under bust
XS 33 ⅛ 25 ¼
S 34 ⅝ 26 ¾
M 36 ¼ 28 ⅜
L 39 ⅜ 31 ½
XL 42 ½ 34 ⅝
2XL 45 ⅝ 37 ¾
Sports bra measurements in centimeters
Size Bust Under bust
XS 84 64
S 88 68
M 92 72
L 100 80
XL 108 88
2XL 116 96
Leggings measurements in inches
Size Waist Hips
XS 25 ¼ 35 ⅜
S 26 ¾ 37
M 28 ⅜ 38 ⅝
L 31 ½ 41 ¾
XL 34 ⅝ 44 ⅞
Leggings measurements in centimeters
Size Waist Hips
XS 64 90
S 68 94
M 72 98
L 80 106
XL 88 114
Cosmo Orbit Legging Set

Cosmo Dress Edit

Cosmo Afterglow Dress

This piece has a close, stretchy fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer for a sharper bodycon look, or one size up for more ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
Cosmo Afterglow Dress
Cosmo Orbit Dress

This piece has a close, stretchy fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer for a sharper bodycon look, or one size up for more ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
Cosmo Orbit Dress
Cosmo Eclipse Dress

This piece has a close, stretchy fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer for a sharper bodycon look, or one size up for more ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
Cosmo Eclipse Dress
Cosmo Halo Mini Dress

This piece has a soft, stretchy fit with a flared mini skirt. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer at the waist for a sharper shape, or one size up for more ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
2XL 45 ⅝ 37 ¾ 48
3XL 48 ⅞ 41 51 ⅛
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
2XL 116 96 122
3XL 124 104 130
Cosmo Halo Mini Dress

Cosmo Swim Set

Cosmo Tide Bikini Set

This bikini has adjustable ties and a soft stretch fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer for a sharper swim look, or one size up for more coverage and ease.
Measurements in inches
Size Bust Hips
2XS 31 ½ 33 ⅞
XS 33 ⅛ 35 ⅜
S 34 ⅝ 37
M 36 ¼ 38 ⅝
L 39 ⅜ 41 ¾
XL 42 ½ 44 ⅞
2XL 45 ⅝ 48
3XL 48 ⅞ 51 ⅛
4XL 52 54 ⅜
5XL 55 ⅛ 57 ½
6XL 58 ¼ 60 ⅝
Measurements in centimeters
Size Bust Hips
2XS 80 86
XS 84 90
S 88 94
M 92 98
L 100 106
XL 108 114
2XL 116 122
3XL 124 130
4XL 132 138
5XL 140 146
6XL 148 154
Cosmo Tide Bikini Set
Cosmo Aura One-Piece

This swimsuit has a close, stretchy fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer for a sharper swim look, or one size up for more ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 37 ¾ 29 ⅞ 40 ⅛
XL 41 33 ⅛ 43 ¼
2XL 44 ⅛ 36 ¼ 46 ½
3XL 47 ¼ 39 ⅜ 49 ⅝
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 96 76 102
XL 104 84 110
2XL 112 92 118
3XL 120 100 126
Cosmo Aura One-Piece
Cosmo Sunrise High-Waist Set

This bikini set has a close, stretchy swim fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer for a sharper swim look, or one size up for more ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
2XL 45 ⅝ 37 ¾ 48
3XL 48 ⅞ 41 51 ⅛
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
2XL 116 96 122
3XL 124 104 130
Cosmo Sunrise High-Waist Set
Cosmo Eclipse Bikini Set

This bikini set has an adjustable, stretchy swim fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: closer for a sharper bikini look, or one size up for more ease.
Measurements in inches
Size Bust Hips
2XS 31 ½ 33 ⅞
XS 33 ⅛ 35 ⅜
S 34 ⅝ 37
M 36 ¼ 38 ⅝
L 39 ⅜ 41 ¾
XL 42 ½ 44 ⅞
2XL 45 ⅝ 48
3XL 48 ⅞ 51 ⅛
4XL 52 54 ⅜
5XL 55 ⅛ 57 ½
6XL 58 ¼ 60 ⅝
Measurements in centimeters
Size Bust Hips
2XS 80 86
XS 84 90
S 88 94
M 92 98
L 100 106
XL 108 114
2XL 116 122
3XL 124 130
4XL 132 138
5XL 140 146
6XL 148 154
Cosmo Eclipse Bikini Set

Cosmo Lounge Set

Cosmo Wave Lounge Set

This set has a relaxed lounge fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: your usual size for a relaxed look, or one size up for extra ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
2XL 45 ⅝ 37 ¾ 48
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
2XL 116 96 122
Cosmo Wave Lounge Set
Cosmo Vibe Lounge Set

This set has a relaxed lounge fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: your usual size for a relaxed look, or one size up for extra ease.
Measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
2XL 45 ⅝ 37 ¾ 48
Measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
2XL 116 96 122
Cosmo Vibe Lounge Set
Cosmo Daylight Lounge Set

This set includes two pieces: one short-sleeve pajama top and one pair of pajama shorts. Choose each size independently before adding the bundle to your bag.

Both pieces have a relaxed lounge fit. If you are between sizes, choose your usual size for an easy fit, or one size up for extra comfort.
Top measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
2XL 45 ⅝ 37 ¾ 48
Top measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
2XL 116 96 122
Shorts measurements in inches
Size Waist Hips
XS 25 ¼ 35 ⅜
S 26 ¾ 37
M 28 ⅜ 38 ⅝
L 31 ½ 41 ¾
XL 34 ⅝ 44 ⅞
2XL 37 ¾ 48
Shorts measurements in centimeters
Size Waist Hips
XS 64 90
S 68 94
M 72 98
L 80 106
XL 88 114
2XL 96 122
Cosmo Daylight Lounge Set
Cosmo Blush Lounge Set

This set has a relaxed lounge fit. Check the measurements before ordering.

If you are between sizes, choose based on the fit you prefer: your usual size for a relaxed lounge feel, or one size up for extra ease.
Top measurements in inches
Size Bust Waist Hips
XS 33 ⅛ 25 ¼ 35 ⅜
S 34 ⅝ 26 ¾ 37
M 36 ¼ 28 ⅜ 38 ⅝
L 39 ⅜ 31 ½ 41 ¾
XL 42 ½ 34 ⅝ 44 ⅞
2XL 45 ⅝ 37 ¾ 48
Top measurements in centimeters
Size Bust Waist Hips
XS 84 64 90
S 88 68 94
M 92 72 98
L 100 80 106
XL 108 88 114
2XL 116 96 122
Shorts measurements in inches
Size Waist Hips
XS 25 ¼ 35 ⅜
S 26 ¾ 37
M 28 ⅜ 38 ⅝
L 31 ½ 41 ¾
XL 34 ⅝ 44 ⅞
2XL 37 ¾ 48
Shorts measurements in centimeters
Size Waist Hips
XS 64 90
S 68 94
M 72 98
L 80 106
XL 88 114
2XL 96 122
Cosmo Blush Lounge Set