Thin skin and clothes that do not irritate
Short answer: Choose smooth fabric without hard seams, without a label at the neck and without tight elastics. The less friction, the better.
Why friction matters more
As skin thins with age, it tolerates less rubbing. What used to go unnoticed can cause redness or irritation. A smooth fabric with low friction is therefore the most important choice.
The three details that count
Flat seams rather than thick ones, a printed label at the neck rather than a sewn one, and wide soft elastics rather than narrow ones. All three are easy to check before you buy. See bamboo underwear for women.
Washing is part of it
Fabric softener and detergent residue make fabric less soft and can irritate sensitive skin in themselves. Wash without softener and with an extra rinse. See bamboo underwear for men and bamboo nightwear for women.
Frequently asked questions
Is bamboo viscose better than cotton here
It is smoother and has lower friction, which many people notice clearly.
What about dyes
OEKO-TEX certification means the finished fabric has been tested for harmful substances.
When should you talk to a doctor
With persistent redness, itching or broken skin, contact your doctor.