Created by taking the brand's original hybrid comfort shoe and making it smarter. Lighter in weight, lighter on the planet, and more comfortable and wearable than ever. It's the KEEN® Whyser Slip-On shoe. Featuring durable crushback heels that make these shoes versatile and able to be worn as a slide or a shoe. These slip-on shoes for men are built on KEEN's traditional wider footwear. They are made of a recycled Polyethylene terephthalate (PET) plastic upper, a rubber insole, and a cotton lining. The contoured arch provides midfoot support.