600d Polyester. Superb, Trendy, High Quality & Vast Overnight Laptop Backpack Rucksack • Two Spacious Main Compartments with a Smaller One on Front • Inside Padded Pocket for 15.6” Laptop • Back Main Compartment is Extendable with Mesh Zip Inside Pocket for Travel Wrinkle Free Packing. Internal Organizer. Padded Pocket for Ipad. Four Compression Straps, Two on Each Side. Two Strong, Padded Carrying Handles, One on Top & One on Side. Adjustable Padded Shoulder Straps. Chest Strap. Padded Back Panel. Wide Strap on Back to Go Over Trolley Handle. Suitable for Screen Print & Transfer Print or Embroidery. Minimum Quantity: 1