I've had this exact pair of adidas cloudfoam flip flops for 3 years and they are no longer made or sold (the current line isn't as good). They were the most comfortable
Adidas Adilette Cloudfoam Plus Slides Sandals Slipper Black S82137 | eBay
adidas Adilette Comfort Flip-Flops - Black | Women's Swim | adidas US