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Da Yu

My name is Da Yu, and I was born in Xingcheng, China—widely known as the "Swimwear Capital of the World," where approximately one out of every four swimsuits globally is produced. Growing up in such a unique industrial environment, I developed an early and intuitive understanding of the swimwear industry and its complete production process.

From fabric selection and pattern development to printing techniques and quality control, what may seem complex to others has always been part of my everyday life. Over time, I built a deep understanding of what defines high-quality swimwear—durable materials, comfortable fabrics, and the craftsmanship behind well-made products. These early experiences laid a solid foundation for my long-term involvement in the industry.

At the age of 18, I pursued a degree in Software Engineering, where I developed strong analytical thinking and problem-solving skills. This technical background later allowed me to approach traditional manufacturing from a more structured and data-driven perspective.

At 25, I returned to my hometown and founded TideLine Swimwear, with the goal of sharing real, experience-based insights about the swimwear industry. Through this platform, I aim to make industry knowledge more accessible and practical for those who are interested in swimwear, especially entrepreneurs and brands looking to enter the market.

All the content I create is based on real-world manufacturing experience and first-hand industry knowledge, rather than second-hand information.

My goal is simple: to make the swimwear industry more transparent and help more people truly understand it, so they can successfully build their own swimwear brands.

If you are looking for reliable swimwear manufacturing resources, or planning to build your own swimwear brand, this will be a valuable starting point for you.

Articles

October 12, 2026

How to Choose a Swimwear Manufacturer: 5-Step Guide

Learn how to find and choose a swimwear manufacturer for your designs. Use a 5-step method, a 7-dimension scorecard, and avoid costly sourcing mistakes.

October 6, 2026

8 Resort 2027 Swimwear Trends to Plan Your Collection

Explore 8 Resort 2027 swimwear trends with factory insights on fit, fabrics, MOQ and the October to December sampling window for a market-ready collection.

September 22, 2026

10 Best Swimwear Brands in 2026: A Factory Planning Guide

A factory-side review of the 10 best swimwear brands in 2026, comparing positioning, price, construction, MOQ, and OEM/ODM planning for new labels.

September 15, 2026

Full Coverage Swimwear Trends 2026: Gen Z's New Swim Style

Gen Z is moving past thong bikinis in 2026. Explore full coverage swimwear trends, seven key styles, top brand strategies, and custom manufacturing.

September 9, 2026

Swimwear Hardware Guide: Types, Materials, and Sourcing

Learn to choose swimwear hardware: rings, sliders, clasps, materials, finishes, standards, plus a practical sourcing method for OEM and ODM swimwear programs.

September 8, 2026

Different Swimsuit Top and Bottom Sizes? 4 Fit Solutions

Swimsuit top and bottom different sizes? Learn to measure, shop separates, use adjustable styles, and explore custom swimwear for a fit that stays secure.

Author Bio