ARQ – ARQ

How to Wash and Care for Cotton Undies

How to Wash and Care for Cotton Undies

By ARQ – ARQ | Published: 2026-10-28

Category: Tips & Care

Learn how to wash cotton undies to prevent shrinkage, fading, and stretching. Follow our simple care steps to keep your organic cotton underwear fresh and long-lasting.

Quick Answer

Wash your cotton undies in cold water on a gentle cycle, then line-dry them to prevent shrinkage and fading. Avoid high heat and harsh detergents to keep the organic cotton soft and stretchy.

Why Cold Water and Line Drying Matter

Cotton is a natural fiber that can shrink or lose its shape when exposed to hot water or high dryer heat. Cold water helps preserve the fabric's integrity and prevents color fading, especially for darker shades like grannysmith green.

Line drying is gentler than machine drying and saves energy. It also reduces wear and tear on the elastic and bound edges, helping your undies keep their fit longer.

What About Stains and Odors?

For stains, treat them promptly with a gentle stain remover before washing. Avoid bleach, which can weaken cotton fibers and cause yellowing over time.

To keep undies fresh, wash them after every wear. If you sweat heavily, rinse them in cold water immediately after taking them off to prevent odor buildup.

Step-by-Step Cotton Undies Care Routine

  1. Sort and Pre-Treat: Separate dark and light colors. Check for stains and apply a gentle stain remover directly to the area before washing. Pre-treating stains promptly prevents them from setting in.
  2. Wash in Cold Water: Machine wash on a gentle cycle with cold water (below 30°C). Use a mild detergent without bleach or fabric softeners, as softeners can coat the fibers and reduce absorbency. Avoid hot water to prevent shrinkage and color fading.
  3. Dry Flat or Line Dry: Lay the undies flat or hang them to dry in the shade. Avoid wringing or twisting, which can distort the shape. Skip the dryer entirely to preserve the elastic and bound edges. High heat is the main culprit for shrinkage and elastic damage.
  4. Store Properly: Fold and store in a drawer, away from direct sunlight. Avoid stretching them on hangers, which can misshape the waistband. Proper storage keeps the fit and fabric in good condition.

Product Care Facts

  • MISHA UNDIES, grannysmith: Made from 92% organic cotton and 8% spandex with signature bound edge construction. The spandex provides stretch, but high heat can break down elastane, so cold washing and line drying help maintain the fit and support.
    MISHA UNDIES, grannysmith
    MISHA UNDIES, grannysmith

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