Can you own too many Birks. Yes if have a pair of Noppyflex sandals. Instruments of pure foot torture as Birkenstock choose to use hard plastic for the foot bed unlike similar
Birkenstock Birki's Noppy Flex New w/out Tags Sandals Made in Germany Sz 41 | eBay
Birkenstock | Shoes | Birkenstock Sandals Super Noppy Massage Acupressure Us 775 Eu 38 Never Worn | Poshmark