Can You Put Spandex / Lycra in the Dryer?

Can You Put Spandex or Lycra in the Dryer?

With caution — low heat only, and air drying is strongly preferred. Spandex (also sold under the brand name Lycra) is an elastic synthetic fiber that gives stretch fabrics their stretch and recovery. It's heat-sensitive: high heat degrades the elastic fibers over time, causing the garment to lose its stretch, become baggy, and eventually lose its shape permanently.

What Heat Does to Spandex

• Fiber degradation: Heat breaks down the polymer chains in spandex, reducing its elasticity. This is cumulative — each hot dryer cycle causes a little more damage.
• Loss of stretch and recovery: The garment stops bouncing back after stretching. Leggings become baggy at the knees; waistbands lose their grip.
• Fabric distortion: High heat can cause spandex-blend fabrics to pucker, warp, or develop permanent creases.
• Reduced lifespan: Regular high-heat drying significantly shortens the life of spandex-containing garments.

Can Spandex Go in the Dryer at All?

Yes — on low heat or no heat only. A single low-heat cycle won't ruin spandex, but repeated exposure to even low heat accumulates damage over time. Air drying is always the better option for preserving stretch fabrics long-term.

How to Dry Spandex and Lycra Correctly

Best method: Air dry flat or hang.

• Spandex garments are lightweight and dry quickly — most activewear dries in 1–2 hours on a rack with good airflow.
• Hang leggings and tights by the waistband — don't hang by the legs, which can stretch the fabric.
• Lay sports bras and structured activewear flat to maintain their shape.
• A clip fan like the Gaiatop Mini Clip Fan speeds up drying significantly for lightweight synthetic fabrics.

If using the dryer: Low heat or no heat only. Use a Mesh Wash Bag to reduce agitation and friction on delicate spandex items. Remove promptly when the cycle ends.

Common Spandex-Containing Items

• Activewear / leggings: Air dry preferred; low heat if using dryer
• Sports bras: Air dry flat; dryer degrades both the spandex and the underwire/padding
• Swimwear: Air dry only — chlorine + heat is particularly damaging to spandex
• Stretch jeans / denim: Low heat; high heat degrades the elastane component
• Shapewear: Air dry flat; heat degrades the compression properties
• Yoga pants: Air dry preferred; low heat maximum

Frequently Asked Questions

Why do my leggings go baggy after washing?

Usually because they've been dried on high heat repeatedly, degrading the spandex fibers. Switch to air drying or low heat and the remaining elasticity will be preserved. Unfortunately, already-degraded spandex can't be restored.

Does spandex shrink in the dryer?

Spandex itself doesn't shrink, but the other fibers in the blend (cotton, polyester) may. The bigger risk with spandex is elasticity loss rather than shrinkage.

Can I put a swimsuit in the dryer?

No — swimwear contains high percentages of spandex and is designed to be air dried. Heat degrades the spandex rapidly, and chlorine residue in the fabric makes it even more heat-sensitive. Always air dry swimwear flat.

How do I know if my garment contains spandex?

Check the care label — the fiber content is listed. Spandex may be listed as spandex, elastane, or Lycra (a brand name). Even small percentages (2–5%) are enough to make the garment heat-sensitive.