Bust Circumference
Measure completely around the apex/fullest projection of the bust line. Maintain the measuring tape strictly horizontal to ensure consistent circular tension without compressing soft tissue.
Manufacturing with Customized Size Specifications?
Beyond Swimwear Co., Ltd. grades directly to proprietary brand size specs, regional demographics, or existing reference garments. Minimum bulk order starts at 50 pieces per style with mixed sizes.
Fit Precision & Grading Standards
Standard Swimwear Sizing & Global Conversions
All collections manufactured by Beyond Swimwear Co., Ltd. adhere to standardized negative ease calculations and multi-regional conversion matrices across standard and extended size ranges.
Women's Swimwear Size Chart
Standard Fit Specifications| Standard Size | Bust (Inches) | Waist (Inches) | Hip (Inches) | US Sizing | UK Sizing | AU Sizing | EU Sizing |
|---|---|---|---|---|---|---|---|
| XS | 30–32" | 23–25" | 33–35" | 0–2 | 4–6 | 6–8 | 32–34 |
| S | 32–34" | 25–27" | 35–37" | 4–6 | 8–10 | 10–12 | 36–38 |
| M | 34–36" | 27–29" | 37–39" | 8–10 | 12–14 | 12–14 | 40–42 |
| L | 36–38" | 29–31" | 39–41" | 12–14 | 16–18 | 14–16 | 44–46 |
| XL | 38–40" | 31–34" | 41–43" | 16–18 | 20–22 | 18–20 | 48–50 |
| 2XL | 40–43" | 34–37" | 43–46" | 20–22 | 24–26 | 22–24 | 52–54 |
| 3XL | 43–46" | 37–40" | 46–49" | 24–26 | 28–30 | 24–26 | 56–58 |
Men's Swimwear Size Chart
Trunks & Boardshorts| Standard Size | Waist (Inches) | Hip (Inches) | US / UK Sizing | EU Sizing |
|---|---|---|---|---|
| S | 28–30" | 35–37" | 28–30 | 44–46 |
| M | 30–32" | 37–39" | 32–34 | 48–50 |
| L | 32–34" | 39–41" | 36–38 | 52–54 |
| XL | 34–36" | 41–43" | 40–42 | 56–58 |
| 2XL | 36–38" | 43–45" | 44–46 | 60–62 |
Kids' Swimwear Size Chart
Infant & Children Fit| Size Label | Age Bracket | Height (Inches) | Chest (Inches) | Waist (Inches) |
|---|---|---|---|---|
| 2T | 1–2 Years | 33–35" | 20" | 20" |
| 3T | 2–3 Years | 35–38" | 21" | 21" |
| 4T | 3–4 Years | 38–41" | 22" | 21.5" |
| 5 | 4–5 Years | 41–44" | 23" | 22" |
| 6 | 5–6 Years | 44–46" | 24" | 23" |
| 8 | 7–8 Years | 48–50" | 26" | 24" |
| 10 | 9–10 Years | 52–55" | 28" | 25" |
Quality Control & Fitment Protocol
How to Measure Accurately for Production
Consistent measurement data guarantees streamlined tech pack translation and minimizes sample correction iterations during rapid pre-production phases.
Natural Waistline
Locate the narrowest anatomical circumference of the torso, situated just above the navel. Keep the tape taut yet comfortably uncompressed to reflect genuine resting waist tension.
Low Hip Circumference
Determine the widest point across the hip and gluteal contours, situated roughly 8 inches (20 cm) below the natural waistline. Keep feet shoulder-width aligned for accurate lateral grading balance.
Factory FAQs
Technical Sizing & Grading FAQs
Key technical insights concerning swimwear pattern development, stretch allowance, and bulk grading specifications.
How do I convert swimsuit sizes between US, UK, AU, and EU standards?
A women's US size 4–6 correlates to a UK 8–10, AU 10–12, and EU 36–38 (standard Small). When expanding into different territorial retail environments, Beyond Swimwear Co., Ltd. supplies verified cross-market size conversion charts and customized multilingual interior heat-transfer care labels.
Can you grade production patterns to custom brand specs?
Yes. Beyond Swimwear Co., Ltd. develops digital Gerber and Optitex CAD patterns calibrated to your custom measurements. Whether you cater to petite, tall, extended plus-size (up to 6XL), or maternity demographics, our in-house pattern engineers achieve balanced grading distributions without distorting profile aesthetics.
How does fabric stretch modulus affect pattern grading?
Synthetic elastane and recycled blends exhibit different dimensional recovery traits. A 190gsm REPREVE® recycled polyester blend delivers different tension compared to a high-compression 250gsm ribbed nylon-spandex. We test stretch and recovery percentages in our laboratory prior to cutting, factoring verified negative ease directly into the master patterns.
What are the sample turnarounds and tolerances for customized size specs?
Physical prototype samples are constructed within 2 to 3 weeks based on your tech pack. Sewing tolerances adhere to strict apparel standards (±0.5 cm on key vertical/horizontal seam lines), monitored by our six dedicated in-house QC inspectors under AQL 2.5 criteria.
Develop Your Custom Sized Swimwear Collection
Send your tech pack or size specifications to [email protected]. Beyond Swimwear Co., Ltd. provides rapid digital grading reviews and wholesale quotes within two business hours.