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
How Did Birkenstocks Convince Us the Pain of Breaking Them in Was Worth It? - Vox
Arizona Essentials EVA Active Red | BIRKENSTOCK
Arizona Birkibuc Stone | BIRKENSTOCK
Arizona Soft Footbed Suede Leather Antique White | BIRKENSTOCK
Arizona Oiled Leather Tobacco Brown | BIRKENSTOCK
Arizona Vegan Women Textile Eggshell | BIRKENSTOCK