2 Way vs 4 Way Stretch Fabric: What's The Difference?

The design of swimsuit patterns is actually very simple, but it should be noted that swimsuits made of different materials and fabrics have different sizes. The elasticity of the fabric will affect the actual size of the finished garment. Choose a fabric that is stretchy enough to create a perfect swimsuit. So which fabric is the most suitable for swimsuits?

We already know that common swimsuit fabrics are made of Lycra, nylon, polyester, and spandex, so what are four-way stretch and two-way stretch? With these questions, let’s take a look at the use of four-sided elastic and two-sided elastic in swimsuits today.

Two Way Stretch Fabric
The stretch fabric can only stretch lengthwise or widthwise; however, it cannot stretch simultaneously in both directions simultaneously. The stretch typically occurs from selvage to selvage, the edges of the material formed to stop the fabric from unraveling. Two way stretch fabric is also known as one-way stretch or single-axis stretch. It is commonly used in garments where stretch is required in one direction only, such as stretch denim jeans or skirts and fitted blouses or dresses.

Four Way Stretch Fabric
Most people prefer the 4-way stretch fabric to make sportswear. It is able to stretch lengthwise and widthwise at the same time, which allows for more elasticity. The most well-known example of a four-way stretch cloth is the spandex. Using fabric that has 4-way stretch on athletic clothing allows the clothing to be shaped to fit your body and withstand greater strain and stress as you move. Similar to 2-way stretch fabrics, the easiest method to determine whether something is a 4-way stretch is to stretch the fabric lengthwise and widthwise. If it can stretch both ways without difficulty, it is a 4-way stretch fabric.

Double-sided elastic fabric is more suitable for split swimsuits and bikinis.
Four-way stretch fabric is mostly used in one-piece and two-piece swimsuits.