Feature for Matein Mlassic Travel Laptop backpack : Luggage / Suitcase strap on the back is great to slide over the luggage tube and attached to your rolling luggage securely for easier transport. Don't have to carry the backpack on your back, less burden on your shoulder and back when on the go. Also fit under seat The hidden theft proof pocket designed on the back sits up against the wearer's body. Anti-Pick pocket back pocket is difficult to steal personal items, store your valuables such as passport and money when traveling so no one can get into it without you feeling it