ecoFLOP rubber is made of vulcanized natural rubber, with up to 30% recycled material made of postconsumer tire rubber. In other words, every 10,000 discs we produce we get to take 130 used tires out of the world's landfills. Again, this is not your average recycled disc, our eco-materials maintain incredible durability thanks to the uniquely strong characteristics of rubber. It is also super grippy (think the tires of your car) and with moderate floppiness, it reduces roll-aways while always being an earth friendly disc in your bag! The PDGA approved Koi gives you the confidence needed to run even the most difficult putts and dangerous approaches.