Sperry Women's Crest Twin Gore BionicThe Sperry Crest Twin Gore BIONIC will have you lookin AND feelin good. This stylish slip on sneak is crafted from Sperrys BIONIC yarn which is made from plastic that finds its way to our ocean floors. Each pair of Sperry BIONIC shoes is woven from an average of 5 recycled plastic bottles. A memory foam insole gives you the comfort you need in a pair of shoes and since these are crafted from recycled materials, each pair of Crest Twin Gore BIONICs