Enjoy maximum comfort and sustainability when you run with the Glycerin 20 running shoe. Thanks to the new extremely soft DNA LOFT v3 technology and its adaptability to your strides, your feet will no longer feel a thing. With neutral cushioning, 32.4% recycled materials in the upper and 4.66 plastic bottles that don't end up in landfill, you'll be making the right choice. A secure, breathable fit will offer a flexible and smooth transition.