It takes a long time to wear out a Birkenstock, a favorite sandal of Boomers (with or without socks). Here's a comparison of a new pair to an old pair worn daily
Tamaris Webshop | Tamaris Utcai papucs 1-1-27505-26-333
Birkenstock | Shoes | Birkenstock 4 Granada Cut Out Strappy Cork Bed Sandles Faded Kahki | Poshmark
Tamaris Webshop | Tamaris Utcai papucs 1-1-27418-38-580