Experts recommend replacing underwear every 6 to 12 months to maintain hygiene, elasticity, and comfort, as fabrics degrade over time from washing and wear.
Signs It's Time to Replace
Underwear should be discarded if it shows stretched waistbands or leg holes, pilling, frayed seams, or lingering odors after washing. Stains or loss of shape also indicate it's no longer effective at protecting skin or outer clothing.
Factors Affecting Lifespan
Higher-quality materials like cotton or bamboo last longer than synthetics, while frequent washing shortens life—aim for 20-25 pairs to rotate and wash less often per pair. Men often keep pairs longer until damaged, while women replace more frequently every 3-6 months on average.
Replacement Tips
Buy enough pairs for 1-2 weeks of daily fresh wear, and consider subscriptions for regular refresh every 3-6 months. Proper care, like washing in cold water and air-drying, extends usability.
