Calpak | Bags | Calpak Luka Mini Backpack In Watermelon Nwt 。BRAND NEW! no tags but never been used. Calpak Luka Mini Backpack in Watermelon color. Cloud-like & Durable: Crafted from a lightweight, scratch-resistant polyester blend with a distinctive plush, cushioned feel. Travel-Friendly Design: Includes a built-in luggage trolley sleeve so it can slide effortlessly over suitcase handles, complete with a hidden, anti-theft security pocket for passports or wallets. Smart Organization: Multiple interior mesh zip pockets Water-Resistant Lining: Lined with water-resistant material for added protection against spills or weather