Birko-Flor can be distinguished from Birkenstock. This is an example. They look good and fit well (I use slim ones so a slim one fits me fine) but are a bit stiff. Not like the more expensive brand but I knew that when I ordered it.
π YHOON Burgundy Comfort Slippers - Clogs for Maximum Comfort
10 Review
π Crocs Unisex Classic Translucent: The Epitome of Comfort and Style
9 Review
π Ultimate Comfort and Style: CERYTHRINA Breathable Outdoor Walking Slippers for Men's Shoes and Mules & Clogs
10 Review
π KEEN Men's Austin Brindle Bungee: Stylish and Comfortable Footwear for Active Men
9 Review