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Size Guide

Basic Measuring Areas


A. Bust/Chest

Measure under your arms, around the fullest part of your bust, without wearing any bra or clothing

B. Waist

Encircle the measure tape and measure around your natural waistline. Bend to the side to find the natural crease of your waist, measure at this point. (Approximately 4 cm above your belly button)

C. Hips (above hips)

Measure around at the point where your bikini bottom will stand. Check out the photo carefully. (Approximately 6 cm down from your belly button)

Swimwear Measuring Tips

1. Measurements should be taken directly on your body using a measure tape.
2. We suggest a professional seamstress should ideally take the measurements for you. Show this guide!
3. Hold tape snug, not tight.
4. Don't let tape twist.

Onesize Swimwear

All our swimwear are stretch, so OneSize designs fit perfectly to all women sizes Small and Medium. Take a careful look on the size chart below. For any further information, please contact us.

NOTICE: Swimsuits are considered underwear so for hygiene reasons, NO REFUNDS or CHANGES are accepted.

A. Bust/Chest

Measure under your arms, around the fullest part of your bust, without wearing any bra or clothing

B. Waist

Encircle the measure tape and measure around your natural waistline. Bend to the side to find the natural crease of your waist, measure at this point. (Approximately 4 cm above your belly button)

C. Hips (above hips)

Measure around at the point where your bikini bottom will stand. Check out the photo carefully. (Approximately 6 cm down from your belly button)

Swimwear Measuring Tips

1. Measurements should be taken directly on your body using a measure tape.
2. We suggest a professional seamstress should ideally take the measurements for you. Show this guide!
3. Hold tape snug, not tight.
4. Don't let tape twist.

Onesize Swimwear

All our swimwear are stretch, so OneSize designs fit perfectly to all women sizes Small and Medium. Take a careful look on the size chart below. For any further information, please contact us.

NOTICE: Swimsuits are considered underwear so for hygiene reasons, NO REFUNDS or CHANGES are accepted.

Size Chart

SMALL MEDIUM
BUST 70-80 65-80
WAIST 81-95 81-95
HIPS3 70-80 81-90
All measurements are in cm
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