Get them on the first step with the 2015 Crazylight Boost Primeknit sneaker! ; Mesh and synthetic upper. ; Lace-up closure. ; AdiPRENE+ in the forefoot and Boost technology in the heel for energy return and cushioning. ; Brand logo at tongue and heel. ; Soft fabric lining and footbed. ; Rubber outsole. ; Imported. Measurements: ; Weight: 1 lb 6 oz ; Product measurements were taken using size 13.5, width D - Medium. Please note that measurements may vary by size.