How to Measure Swimwear in 3 Simple Steps – A Free Guide from UNIJOY

If you’re developing your own custom swimwear collection, you’ve likely experienced this frustrating situation: you provide the manufacturer with standard body measurements, but the first sample you receive is a complete misfit. This common problem often stems from a key misunderstanding: the difference between body measurements and garment sizes.

With over 17 years of experience in swimwear manufacturing, UNIJOY has witnessed this confusion lead to countless product launch delays and wasted sample budgets. The secret to a perfect fit lies in understanding how to measure the garment itself.

In this measurement guide, we’ll dispel this misconception and provide a simple three-step process to help you accurately measure your swimwear and create a professional size chart tailored to your target market.

Why Getting Your Swimwear Measurements Wrong is Costly

Before diving into “how to measure,” let’s understand “why” it goes wrong. Confusing body measurements with garment sizes leads to:

Multiple rounds of sample making: Each incorrect sample can delay your progress by weeks.

Wasted development budget: You pay for ill-fitting samples.

Inconsistent sizing: Your brand will become known for inaccurate sizing, resulting in high return rates and negative reviews.

Understanding garment sizing is fundamental to building a successful swimwear collection.

The 3-Step Guide to Professional Swimwear Measurement

Step 1: Start with a Clear Measurement Chart

Every swimwear style is different. Therefore, UNIJOY provides a clear measurement chart (or a “technical kit” style sketch) for each swimwear style to ensure consistency and avoid errors.

Be sure to request a measurement chart for each new style from the swimwear manufacturer. This chart is the blueprint for your swimwear business. It ensures everyone measures the same points in the same way, eliminating errors and communication breakdowns.

 

Step 2: How to Accurately Measure Samples

Now, let’s get hands-on. If you have a sample (or a fitting garment from a competitor), here’s how to measure it like a pro.

You will need: A soft measuring tape and a flat, hard surface.

Key Measurement Steps (with attached image):

Pro tips: Be sure to lay the swimwear flat. Measure all key dimensions of the swimwear sample precisely according to the measurement diagrams.

Step 3: Fill in the Size Chart & Let Us Help

Once you have the sample measurements, record them in a clear size chart. This is the most powerful step. You don’t need to make all the sizes yourself. Simply provide the measurements for your base size (e.g., M), and experienced swimwear manufacturers like UNIJOY will accurately produce all other sizes (XS, S, L, XL) according to the size proportions. This saves you a significant amount of time and ensures consistent sizing across your entire swimwear collection.

Important Note: Understanding Swimwear Tolerances

Many new brands may be surprised to learn that swimwear is handmade, not entirely automated. Therefore, slight deviations in measurements are normal and acceptable. This is known as tolerance.

If your size chart shows a bust measurement of 30 cm, but your sample measurement is 30.8 cm, don’t worry! This is likely within tolerance.

Swimwear General Tolerance Guidelines:

Small Areas (e.g., neck depth, gusset width): ± 0.3 – 0.6 cm

Large Areas (e.g., bust width, hip width): ± 0.9 – 1.2 cm

Understanding these tolerance ranges can avoid unnecessary worries and modifications during the swimwear sampling process.

Ready to Master Swimwear Sizing?

By following this 3-step guide, you can:

1. Accelerate sample approval and bring products to market faster.
2. Significantly reduce development costs by minimizing sample waste.
3. Build brand loyalty by ensuring your customers receive better-fitting swimwear.

At UNIJOY, we are more than just a manufacturer; we are your partner for success. We believe that empowering you with knowledge will enable the creation of superior products that benefit everyone.

Are You Ready to Streamline Your Swimwear Development Process?

>>Schedule a Free Sizing Consultation: Let us discuss your product line together and help you create the perfect size chart from the start.

>>Explore Our Manufacturing Services: Explore how our 17 years of expertise bring your designs to life with precise craftsmanship and superior quality.

Contact the UNIJOY team today to get started!