Vans x Shark Week Sk8-Hi Zip shoes. Vans and Discovery's "Shark Week" have teamed up on a line of shoes and apparel that supports Oceana's mission to protect the world's oceans and the sharks that call them home. The Shark Week Sk8-Hi Zip combines the legendary Vans lace-up high top with a zipper entry at the heel, Shark Week printed textile and suede uppers, padded collars for support and flexibility, and signature rubber waffle outsoles. Share the wave. The sharks all thank you. Imported.