Material made of Poly 210D + Diamond Mesh. Large main mesh-top zippered compartment with a packable zippered hanging pocket & a deep pocket inside. Front opened deep pocket with a pen loop (fits iPad or tablet with case). Mesh bottle pocket on both sides Air-Mesh adjustable padded back straps. This lightweight all-purpose backpack conveniently fold into its own hanging zippered pocket for simple carrying. 11.75" W x 17.25" H x 5" D
