Unique design Carefully Selected Eva Shoe Material to Make a Perfect Slippers Like This. Lightweight, Durable, Soft Enough to Give Your Extraordinary Experience. Our slippers elastic good, feel very soft. Anti-Slip Curved sole and concave-convex shading design,e rgonomics,slip on comfort stress relief slippers for men and women Soft And Comfortable The bubble slippers have a curved sole, the toe is slightly warped by 15°, which perfectly fits your feet, cushions the pressure, avoids kicking and stepping.