| Fabric Type | Synthetic Elastomer |
| Key Benefits | Extreme Stretch & Recovery, Shape Retention, Lightweight, Unrestricted Movement |
| Feel | Rarely used alone; contributes a smooth, compressive feel to blended fabrics. |
| Best For | Blending with nearly all other fibers to create performance activewear. |
| Sustainability | Petroleum-based. Recycled options are an emerging technology. |
Spandex can stretch up to 500% of its original length without breaking and, once released, snaps back to its initial state. This "rubber-band" effect is what allows for a full, unrestricted range of motion during any activity.
This fiber provides the supportive, "hugging" sensation in activewear. It ensures that leggings don't bag at the knees and that waistbands stay securely in place, maintaining the garment's intended fit wash after wash.
Despite its power, spandex is incredibly lightweight and doesn't add bulk to the fabric. It adds immense functionality while allowing the primary fiber's characteristics (like softness or moisture-wicking) to shine.
Spandex is resistant to deterioration from body oils, perspiration, and most lotions, which helps to prolong the life and fit of the garment.
For a second-skin fit and unrestricted movement.
Delivering locked-in support and high-impact compression.
Creating a chlorine-resistant, hydrodynamic fit for water sports.
Enabling full-body rotation and non-restrictive athletic motion.
Verifying shade accuracy against standards using spectrophotometry.
Ensuring uniformity in GSM (grams per square meter).
Scanning for any tears, stains, or weaving imperfections.
Conducting sample tests for stretch, recovery, and durability.
Standard spandex is a petroleum-based product. However, as it’s used in small percentages (typically 5-20%), its environmental impact is closely tied to the primary fiber in the blend. The industry is actively developing more sustainable alternatives, including recycled spandex. Sansansun is committed to staying at the forefront of this innovation, ready to incorporate certified eco-friendly stretch solutions as they become commercially available.
Always wash in cold water. Hot water can permanently damage the elastane fibers, causing them to lose their elasticity.
Avoid high heat at all costs. Tumble dry on the lowest heat setting, or better yet, hang dry your garments to preserve their stretch and recovery.
Never use chlorine bleach, as it will destroy the fibers. Avoid ironing, as direct high heat will melt the spandex.
