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 Cloudfoam One Y W Flip-flop in Black | Lyst
adidas Adilette Comfort Sandals - Black | unisex swim | adidas US
Cobian Aqua Jump Mens Sandals (Black) – Groundswell Supply