How to Wash and Care for Polyamide Fabric

Polyamide fabric, also known as nylon, is often blended with spandex to create a stretchy and durable textile.Nylon-spandex fabrics are a staple in modern wardrobes. From high-performance leggings to swimwear and even intimates, these fabrics offer the stretch, durability, and comfort we love. But keeping them looking and feeling like new requires a little extra care.

Whether you’re dealing with sweat-drenched activewear or chlorine-soaked swimwear, here’s everything you need to know to care for your nylon-spandex garments the right way.

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Nylon is a strong synthetic fiber known for its durability and smooth hand feel. Spandex (also called elastane) is what gives the fabric its amazing stretch and recovery. Combined, they create the ideal material for form-fitting, movement-friendly garments.

But here’s the catch: both nylon and spandex can be sensitive to high heat, harsh chemicals, and over-washing. Without proper care, these garments may stretch out, lose their elasticity, or become rough to the touch.

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Always use cold or lukewarm water—ideally under 30°C (86°F). Higher temperatures can weaken the spandex fibers and affect the stretch recovery. Cold water helps preserve elasticity, prevents shrinkage, and protects color.

Avoid harsh or alkaline detergents. Go for a mild, fragrance-free liquid detergent. Powdered detergents might not dissolve completely in cold water and could leave residues that damage elasticity.

Hand washing is best, especially for delicate items like swimwear or compression wear. If you must machine wash, use a mesh laundry bag and select the “gentle” or “delicate” cycle with cold water.

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After washing, gently press out excess water with a clean towel. Lay the garment flat on a dry towel in a shaded area to air dry. Hanging can stretch the fabric, and direct sunlight can fade color and break down fibers.

Tumble dryers are too harsh for spandex. The heat can ruin elasticity and cause irreversible shrinkage. Even the “low heat” setting can be risky with repeated exposure.

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Avoid direct ironing. If you must, turn the garment inside out and use a low-temperature setting. Place a thin cloth between the iron and fabric. Alternatively, use a handheld steamer at a safe distance to release wrinkles without pressing the fabric.

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      Sweat stains: Soak in a mix of cold water and white vinegar for 15 minutes before washing.

      Chlorine or salt: Rinse thoroughly with fresh water immediately after use.

      Oil-based stains: Sprinkle baking soda on the stain, let sit 30 minutes, then brush off before hand washing.

Always test spot-treating on a hidden area first to avoid discoloration.

Never use bleach, hydrogen peroxide, or fabric softeners. These substances can degrade both nylon and spandex fibers quickly.

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A: No. Hot water will damage spandex. Use cold water and add white vinegar to kill bacteria.

A: Likely caused by high-heat drying or frequent washing with harsh detergents.

A: Avoid it. Rough items like denim or towels can cause pilling and abrasion.

A: Fold neatly in a drawer. Avoid hanging heavy items like swimsuits or yoga pants, which may stretch out over time.

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With the right care, your nylon-spandex clothes can look and feel like new wear after wear. The key is to treat them as performance garments—because that’s exactly what they are. Cool water, gentle cycles, and air drying are your best friends.

A little care goes a long way in keeping your stretch wear stretchy, your swimwear sleek, and your comfort clothes comfy.