tumi_117339_black1041_m_2.jpg。Brand New TUMI Alpha 3 Expandable Backpack Brand new and unused - New with Tags Military-Grade Durability: TUMI’s legendary ballistic nylon (tear/abrasion-resistant) Dimensions: Main Compartment: 43×30.5×20.5cm (17\"×12\"×8.1\") Laptop Sleeve: Fits 15-16\" devices (40.5×25.5×3.75cm / 16\"×10\"×1.5\") Pro-Level Organization: ✓ Dedicated tablet/accessory pockets ✓ Lockable zippers & RFID-blocking card slots ✓ Expandable front compartment for extra storage Travel-Smart Design: ✓ Padded airflow back panel (reduce sweating) ✓ Luggage trolley slip-on sleeve ✓ Water-repellent base & side umbrella pocket