Selecting the appropriate elastic tape for a garment is not a one-size-fits-all decision. Several key factors must be considered to ensure the final product performs as intended. The material of the elastic tape determines its stretch, recovery, durability, and feel against the skin.

Constant stretching when the suit is put on and taken off, tension from water resistance while swimming, and the pull of gravity when wet all work to elongate the material. Chlorine in pools, salt in seawater, and the chemicals in sunscreen and body oils attack the fibers and elastic components.

Nothing disappoints a customer more than pulling a favorite T‑shirt or sweater out of the laundry only to find it stretched, sagging, or twisted out of shape. This problem is all too common, and understanding its common causes is the first step toward preventing it.

When selecting elastics for garment production, two common types are TPU tape and woven elastic. Their structure differences are fundamental.