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
Arizona Kids EVA Sky Blue | BIRKENSTOCK
Old Birkenstocks 3D model | CGTrader
Tous Nos Modèles | Collection P/E 2022 | BIRKENSTOCK
Birkenstock - Tabacco Brown Natural Leather Arizona Sandals | Baltzar