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
BIRKIS Super-Noppy Synthetic-Sandals Birko-Flor Black Size 35 EU with a regular insole - video Dailymotion
Birki's Super-Noppy Synthetic-Sandals Birko-Flor, Light Brown, Size 45 EU with a Regular Insole : Amazon.co.uk: Fashion
Birkenstock Women's Salina Slide comfort Sandals Regular/ wide C Black NEW shoes | eBay
Remember Noppy Flex and Super Noppy? Birkenstock should bring them back, I would love to buy them... : r/Birkenstocks