Size Guide

UK · US · EU · AUS  ·  Centimetres & Inches


01  Bikini Tops

Eclipse Reversible Triangle Top  ·  Nova Multiway Top

Sizing: Sized by cup only — all other elements are fully adjustable.
Underbust Tie: 75 cm (29.5") from centre ring each side — consistent across all sizes.

Centimetres

Size Equivalents Eclipse Top (cm) Nova Top (cm)
UK US EU AUS Height Width Height Width
AA – A AA – A AA – A AA – A 15.1 17.1 18.8 18.8
B – C B – C B – C B – C 16.5 18.5 20.0 20.0
D – DD D – DD/E D – E D – DD 17.9 19.9 21.2 21.2
E – F DDD/F – G F – G E – F 19.3 21.3 22.4 22.4
G – GG H – I H – I G – GG 20.7 22.7

Inches

Size Equivalents Eclipse Top (in) Nova Top (in)
UK US EU AUS Height Width Height Width
AA – A AA – A AA – A AA – A 5.9" 6.7" 7.4" 7.4"
B – C B – C B – C B – C 6.5" 7.3" 7.9" 7.9"
D – DD D – DD/E D – E D – DD 7.0" 7.8" 8.3" 8.3"
E – F DDD/F – G F – G E – F 7.6" 8.4" 8.8" 8.8"
G – GG H – I H – I G – GG 8.1" 8.9"

Cup size conversion note: US sizing is not fully standardised — DDD/F and G/H can vary by brand. When in doubt, size up. AUS follows UK sizing conventions exactly.


02  Bikini Bottoms

Eclipse Thong  ·  Nova Cheeky

Fit Tip: If your waist and hips fall in different sizes, size to your hips — ties adjust at the waist.
Coverage: Size up for more coverage  ·  Size down for a more minimal look.

Centimetres

Size Size Equivalents Body Measurements (cm)
UK US EU AUS Waist High Hip Hips
XS 4 – 6 0 – 2 32 – 34 6 – 8 59 – 64 74 – 79 87 – 92
S 6 – 8 2 – 4 34 – 36 8 – 10 64 – 70 79 – 85 92 – 98
M 8 – 10 4 – 6 36 – 38 10 – 12 70 – 75 85 – 90 98 – 103
L 12 – 14 8 – 10 40 – 42 14 – 16 75 – 81 90 – 96 103 – 109
XL 14 – 18 10 – 14 42 – 46 16 – 20 81 – 88 96 – 103 109 – 116

Inches

Size Size Equivalents Body Measurements (in)
UK US EU AUS Waist High Hip Hips
XS 4 – 6 0 – 2 32 – 34 6 – 8 23.2 – 25.2" 29.1 – 31.1" 34.3 – 36.2"
S 6 – 8 2 – 4 34 – 36 8 – 10 25.2 – 27.6" 31.1 – 33.5" 36.2 – 38.6"
M 8 – 10 4 – 6 36 – 38 10 – 12 27.6 – 29.5" 33.5 – 35.4" 38.6 – 40.6"
L 12 – 14 8 – 10 40 – 42 14 – 16 29.5 – 31.9" 35.4 – 37.8" 40.6 – 42.9"
XL 14 – 18 10 – 14 42 – 46 16 – 20 31.9 – 34.6" 37.8 – 40.6" 42.9 – 45.7"

Eclipse Thong — Adjustable tie sides. Fits true to size. Size up for more seat coverage.
Nova Cheeky — Cheeky coverage with fixed waist. For fuller seat coverage, size up.


03  Coverups

Luna  ·  Dawn

Fit Tip: Coverups are designed to attach seamlessly to your swimwear - size to your hips if between sizes.
Fabric: Stretchy recycled mesh that contours and sculpts the body  - sizes are a guide, fabric adapts to your shape.

Centimetres

Size Size Equivalents Body Measurements (cm)
UK US EU AUS Bust Waist Hips
XS – S 4 – 8 0 – 4 32 – 36 6 – 10 77 – 88 59 – 70 87 – 98
M – L 10 – 14 6 – 10 38 – 42 12 – 16 88 – 99 70 – 81 98 – 109
L – XL 16 – 20 12 – 16 44 – 48 18 – 22 99 – 114 81 – 96 109 – 124

Inches

Size Size Equivalents Body Measurements (in)
UK US EU AUS Bust Waist Hips
XS – S 4 – 8 0 – 4 32 – 36 6 – 10 30.3 – 34.6" 23.2 – 27.6" 34.3 – 38.6"
M – L 10 – 14 6 – 10 38 – 42 12 – 16 34.6 – 39.0" 27.6 – 31.9" 38.6 – 42.9"
L – XL 16 – 20 12 – 16 44 – 48 18 – 22 39.0 – 44.9" 31.9 – 37.8" 42.9 – 48.8"

Coverups are intentionally stretchy. If between sizes, size up for more length and overlap.
Length is measured from the natural waist to hem. 


How to Measure

Measurement How to Measure
Underbust / Band Wrap the tape measure snugly around your ribcage, directly under your bust. Keep it level and breathe normally.
Bust Measure around the fullest part of your bust, keeping the tape parallel to the floor. Don't pull too tight.
Waist Measure around your natural waist — the narrowest point above your navel.
High Hip Measure around your hip bone, approximately 7–8 cm (3") below your natural waist.
Hips Measure around the fullest part of your seat, approximately 20 cm (8") below your waist.

Questions about sizing? Reach out at sophiechatfield@alunora.co.uk — we're happy to help you find your perfect fit.