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Size & fit

Fit

Size & fit guide

Three sizes: Small, Medium and Large.

3Sizes

6–16UK dress

2 minTo measure

KELKINI one-piece photographed on location

How our sizing works

KELKINI comes in three sizes. Find yours in the chart below.

SmallUK 6–8

MediumUK 10–12

LargeUK 14–16

The Marilyn KELKINI is sized by cup: Small (A–B), Medium (C–D), Large (D+). Its product page has the details.

How to measure

Use a soft tape over bare skin or light underwear. Keep the tape level and snug, never tight.

Bust
Measure around the fullest part of the bust, tape level and not pulled tight.
Underbust
Measure directly under the bust, where a band would sit.
Waist
Measure the narrowest part of the natural waist, usually just above the navel.
Hip
Stand with feet together and measure around the fullest part of the hips.

Size chart

Size	UK dress	Bust	Underbust	Waist	Hip
Small	6–8	79–86	63–70	60–66	86–93
Medium	10–12	86–94	70–78	66–74	93–101
Large	14–16	94–104	78–86	74–84	101–109

Measurements are a guide. Placeholder figures — confirm against KELKINI’s own grading before publishing.

Stretch factor

Every product page carries a stretch rating out of three, so you know how much give a piece has before you order.

1 — Structured. Holds its shape firmly. Take your measured size.

2 — Balanced. Contours with some give. Most pieces sit here.

3 — Generous. Very forgiving. Size down if you are between sizes.

Fit by style

One-Pieces

Cut-out one-pieces sit high on the hip with a thong back. Torso length matters more than dress size here — if you are 5’9” or taller, size up for comfort through the body.

Bikini Sets

Tops and bottoms come as a set; the tie fastenings adjust the fit.

Sets & Dresses

Three-piece sets and dresses run looser by design and are meant to be worn over swimwear. If you are between sizes, take the smaller one.

Care

Machine washable
Wash with similar colours.
No bleach, iron or tumble dryer
Bleach and high heat damage the stretch.

Fit questions

Take the larger one. Tie and halterneck fastenings can bring a generous fit in; a fit that is too small cannot be let out.

The nylon spandex is designed to recover its shape after each wear. It is machine washable — just skip the tumble dryer.

No. Use the size chart above; if you are between sizes, take the larger one.

Unworn pieces with tags and the hygiene liner intact can be exchanged. Check the returns page for the current window and process.

Still unsure

Tell us your measurements — we’ll pick the size

Message us before you order and someone from the team will talk you through the fit.

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