Our quest to make the perfect and cleanest eco slides is now complete. We started by sourcing the best materials we could find—natural rubber and vegan uppers. Thoughtful ingredients combined with our signature recycled tire sole technology make the ESSNTLS Slide a winning combo. Indosole Size: 8/9 (39/40) I'm a true size 8 & it was too large.. I suggest you don't buy these unless you're a 9. Recycled tire soles Contoured natural rubber footbed Embedded arch support Waterproof Comfortable ENVRO fiber strap lined with microfiber Light and flexible at approx. 284g (10oz) Made without animals or the use of fuel powered machinery Retails $55