eek! these are no longer available. in july 2018, after extensive research, we introduced a new, sneaker-like sole. it's fixed to the slipper and made from a highly durable, performance-grade tpu (just like the detachable soles we featured before).
we're pretty excited, and hope you'll love this design. it's an even more comfortable and practical slipper, that you can now wear further and for longer. all day, everywhere.