I wore two of these on rotation from January to March. I layered them over a silk belly band to prevent slippage, so they didn't touch my skin directly. I cut off the tags (see photo 4). I washed them on the hand wash cycle every time, so I don't think there's much damage, but there are marks from clothespins, and some areas are slightly stretched (see photos 5 and 6). There are some places where threads are coming loose (see photo 7). There is some pilling and fiber clinging due to friction, but they are still in usable condition. I hope you understand the characteristics of natural fibers and can appreciate the softness and comfort of the fabric. ↓ From the Silk Family product page: 80% cotton, 20% silk * Uses blended yarn. * The knitted elastic thread is wrapped in cotton and knitted so that it does not touch the skin. It has a gentle touch that makes you feel relieved when you touch it. It has a unique, fluffy softness and a relaxed fit. It absorbs sweat well and is comfortable even in summer. It is also highly elastic and fits comfortably on various body types. Another appealing feature is that the soft feel continues even after repeated washing.