for more information about the Sperry BIONIC Collection. The Sperry Josie Dunne Crest Vibe BIONIC lace-up shoe is highlighted with spirited accents that blend beautifully with the classic nautical sneaker silhouette. Style is a collaboration between Sperry and singer Josie Dunne. Each pair of Sperry BIONIC shoes is woven from, on average, five recycled plastic bottles. Man-made upper made with BIONIC material, which is woven from, on average, 5 recycled plastic bottles. Traditional lace-up style with sturdy laces and tonal eyelets for a secure fit. Back pull loop for easy entry. Moisture-wicking Dri-Lex linings move perspiration away from the skin to promote dryness. Plush memory foam footbed delivers lightweight cushioned comfort. Non-marking rubber outsole is flexible, lightweight, and extremely durable. Imported. Measurements: Weight: 10 oz Product measurements were taken using size 7, width B - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.