They are extremely comfortable and as I get blisters from normal soles these cushions can hurt a lot where I need them. The next pair will also be soft.
I've been wearing Birkenstocks for years, so I know what they do for my back and legs. They are great and really improve my balance and make me feel grounded.
Birks never get old or out of date. Always comfortable, always true to size and quality. Like a good practical friend that will last for years. The only problem is finding popular sizes in stock and in stock, which is frustrating and time-consuming.